GEOLEX

Summary of Citation: Bisbee

Publication:
Dumble, E.T., 1902, Notes on the geology of southeastern Arizona:
   American Institute of Mining and Metallurgical Engineers
   Transactions, v. 31, p. 103-105

Usage in Publication:
Bisbee beds

Modifications:	Geologic Province:	Dominant Lithology:
Named Biostratigraphic dating	Pedregosa basin

Summary:
Used for some 3,000 ft of rocks unconformably overlying Paleozoic rocks about 1.5 mi southeast of Bisbee in Cochise Co, AZ in the Pedregosa basin. Cretaceous fossils found in limestone in middle of sequence. Is of Cretaceous age.

Summary of Citation: Bisbee

Publication:
Ransome, F.L., 1904, The geology and ore deposits of the Bisbee
   quadrangle, Arizona: U.S. Geological Survey Professional
   Paper, 21, 168 p.

Usage in Publication:
Bisbee group*

Modifications:	Geologic Province:	Dominant Lithology:
Revised Overview	Pedregosa basin

Summary:
Bisbee beds of Dumble (1902), Pedregosa basin, retained as Bisbee group, divided in ascending order into: Glance conglomerate, Morita formation, Mural limestone, and Cintura formation, all newly named. Is probably 4,750 ft thick in Mule Mountains. Is of Early Cretaceous (Comanchean) age. Formations individually mapped. Fossils described from Cintura and Mural.

Summary of Citation: Bisbee

Publication:
Stoyanow, A.A., 1937, Fossiliferous zones in the Cretaceous and
   Tertiary deposits of southeastern Arizona [abs.]: Geological
   Society of America Proceedings, 1936, p. 296-297

Usage in Publication:
Bisbee group

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Pedregosa basin

Summary:
Shown as made up of (ascending) Morita shale, Mural limestone, and Hay Flat limestone in the Pedregosa basin. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Lasky, S.G., 1938, Newly discovered section of Trinity age in
   southwestern New Mexico: American Association of Petroleum
   Geologists Bulletin, v. 22, no. 5, p. 524-540

Usage in Publication:
Bisbee group*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Revised	Pedregosa basin Basin-and-Range province

Summary:
Extended to Little Hatchet Mountains, Pedregosa basin and Basin-and-Range province, Grant and Hidalgo Cos, NM. Geologic map covers part of Hidalgo Co. Subdivided (ascending) into the following newly names units: Broken Jug limestone, Ringbone shale, Hidalgo volcanics, Howells Ridge formation, Corbett sandstone, Playas Peak formation, and Skunk Ranch conglomerate. [Lithologic content of each new formation described in very general terms.] Base of group hidden beneath valley fill and top covered by Miocene? volcanic rocks. Thickness is 15,300 to 21,000 ft. Assigned an Early Cretaceous (Trinity) age.

Summary of Citation: Bisbee

Publication:
Butler, B.S. and Wilson, E.D., 1938, Some Arizona ore deposits;
   Part 1, General features: Arizona Bureau of Mines Bulletin,
   no. 145, American Institute of Mining, Metallurgical, and
   Petroleum Engineers Regional Meeting, Tucson, AZ, November
   1-5, 1938, p. 9-25, Also, Arizona Bureau of Mines Geological
   Series, no. 12; University of Arizona Bulletin, v. 9, no. 4.

Usage in Publication:
Bisbee group

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Pedregosa basin

Summary:
Extended to Tombstone area in the Pedregosa basin, Cochise Co, AZ. Not subdivided into formations. Described as more than 3,115 ft thick. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Butler, B.S., Wilson, E.D. and Rasor, C.A., 1938, Geology and
   ore deposits of the Tombstone district, Arizona: Arizona
   Bureau of Mines Bulletin, no. 143, 114 p., Prepared in
   cooperation with the U.S. Geological Survey.  Also, Arizona
   Bureau of Mines Geological Series, no. 10; University of
   Arizona Bulletin, v. 9, no. 1.

Usage in Publication:
Bisbee group

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Pedregosa basin

Summary:
Extended north from Bisbee into Tombstone area, Pedregosa basin, Cochise Co, AZ though it cannot be traced directly into the Tombstone district. Is not well exposed in district. Not subdivided into formations. Mural limestone, the third formation from base of four formations in Bisbee can be traced as far north as the Mule Mountains. Northward where Mural is missing, Morita and Cintura cannot be separated. Described as more than 3,115 ft thick. Most sections are incomplete. Measured section. Geologic map. Overlies Naco limestone. Intruded by Uncle Sam porphyry. Is of Comanche or Cretaceous age.

Summary of Citation: Bisbee

Publication:
Gilluly, James, 1945, Emplacement of the Uncle Sam Porphyry,
   Tombstone district, Arizona: American Journal of Science, v.
   243, no. 12, p. 643-666

Usage in Publication:
Bisbee formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised Overview	Pedregosa basin

Summary:
Unconformably overlies Naco limestone (Pennsylvanian), and unconformably overlain by the newly named Bronco volcanics (Cretaceous or early Tertiary) in the Tombstone area, Cochise Co, AZ in Pedregosa basin. [The same rocks put in undivided Bisbee group by Butler and others, 1938.] Geologic map. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Stoyanow, A.A., 1949, Lower Cretaceous stratigraphy in southeastern
   Arizona: Geological Society of America Memoir, 38, 169 p.

Usage in Publication:
Bisbee group

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Pedregosa basin

Summary:
In the Pedregosa basin, subdivided into (ascending): Glance conglomerate, Morita formation, Lowell formation (new), Mural limestone, and Cintura formation. Lowell divided into Pacheta (base), Joserita, Saavedra, Cholla, Quajote, Perilla and Pedregosa members (all new). [Lowell represents upper member of Morita formation of earlier workers. Lowell not used by Gilluly, 1956, and most later workers.] Is of Early Cretaceous (Aptian and Albian) age.

Summary of Citation: Bisbee

Publication:
Cooper, J.R., 1950, Johnson Camp area, Cochise County, Arizona,
   Chapter 3, IN Part 1 of Arizona zinc and lead deposits:
   Arizona Bureau of Mines Bulletin, no. 156, p. 30-39, (incl.
   geologic map, scale 1:1000), Also, Arizona Bureau of Mines
   Geological Series, no. 18; University of Arizona Bulletin,
   v. 21, no. 2.

Usage in Publication:
Bisbee group*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Pedregosa basin

Summary:
Extended to Little Dragoon Mountains in the Pedregosa basin where not subdivided, and where in fault contact with older rocks. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Gilluly, James, 1956, General geology of central Cochise County,
   Arizona, with sections on age and correlation by A.R. Palmer,
   J.S. Williams, and J.B. Reeside, Jr.: U.S. Geological Survey
   Professional Paper, 281, 169 p.

Usage in Publication:
Bisbee group*, formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Overview	Pedregosa basin

Summary:
Group rank recognized in Mule Mountains where Bisbee divided into (ascending) Glance conglomerate, Morita formation, Mural limestone, and Cintura formation. Unit extended to north in Tombstone Hills and Dragoon Mountains where formation rank is used because Mural wedges out rapidly to north and has not been recognized north of Mule Mountains. Where Mural is not recognized, it is difficult to distinguish Morita and Cintura formations. Glance is very irregularly distributed and is assigned as lower member of Bisbee formation in Dragoon Mountains. Study area is within Cochise Co, AZ, Pedregosa basin. Bisbee rests unconformably on Paleozoic rocks and is unconformably overlain by younger deposits. Generally has limestone conglomerates at the base, but the bulk of the Bisbee consists of mudstone and sandstone or quartzite, with a few thin beds of limestone. Not measured, but at least 15,000 ft thick where neither base nor top is exposed. Assigned Early Cretaceous (Comanchean) age. Geologic map.

Summary of Citation: Bisbee

Publication:
Sabins, F.F., Jr., 1957, Stratigraphic relations in Chiricahua
   and Dos Cabezas Mountains, Arizona: American Association of
   Petroleum Geologists Bulletin, v. 41, no. 3, p. 466-510

Usage in Publication:
Bisbee group

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Overview	Pedregosa basin

Summary:
Extended to northern Chiricahua and Dos Cabezas Mountains, Cochise Co, AZ in the Pedregosa basin, where divided into Glance conglomerate and "middle and upper Bisbee strata". Rests unconformably on Permian rocks of Naco group and unconformably overlain by Faraway Ranch formation. Is of Early Cretaceous age. Few identifiable fossils in area. Measured section 2,550+ ft thick in W1/2 sec 19, T15S, R30E shown graphically. Facies of Glance described. Middle and upper parts subdivided into a lower siltstone member, a 700-ft-thick unit of reddish-purple siltstone; middle siltstone member; a 200-ft-thick unit of siltstone; and an upper quartzite and siltstone member, a unit of about 1,650 ft of quartzite and siltstone.

Summary of Citation: Bisbee

Publication:
Gillerman, E., 1958, Geology of the central Peloncillo Mountains,
   Hidalgo County, New Mexico, and Cochise County, Arizona: New
   Mexico Bureau of Mines and Mineral Resources Bulletin, no.
   57, 152 p.

Usage in Publication:
Bisbee group

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Revised	Pedregosa basin

Summary:
Extended to Peloncillo Mountains, Hidalgo Co, NM in Pedregosa basin where divided into (ascending): McGhee Peak formation, Carbonate Hill limestone, Still Ridge formation, and Johnny Bull sandstone (all new). Measured sections of McGhee Peak, Still Ridge, and Johnny Bull described. Geologic map included. Rests unconformably on Permian limestones. Youngest exposed rocks of group in fault relation to other rocks. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Cooper, J.R., 1959, Reconnaissance geologic map of southeastern
   Cochise County, Arizona: U.S. Geological Survey Miscellaneous
   Field Studies Map, MF-213, 1 sheet, scale 1:25,000

Usage in Publication:
Bisbee formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Pedregosa basin

Summary:
Used in Chiricahua, Swisshelm, Pedregosa, Perilla, and southern Peloncillo Mountains of Cochise Co, AZ in the Pedregosa basin. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Cooper, J.R. and Silver, L.T., 1964, Geology and ore deposits
   of the Dragoon quadrangle, Cochise County, Arizona: U.S.
   Geological Survey Professional Paper, 416, 196 p.

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Revised	Pedregosa basin

Summary:
Extended to Steele Hills, Pedregosa basin, Cochise Co, AZ. In Steele Hills and Little Dragoon Mountains the group consists of Glance Conglomerate at base, overlain by the undivided Morita and Cintura Formations. Geologic map. [These authors would have done well to have followed the example of Gilluly (1956) and used Bisbee as a formation with a conglomerate member at base.] Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Hayes, P.T. and Landis, E.R., 1965, Paleozoic stratigraphy of
   the southern part of the Mule Mountains, Arizona, IN
   Contributions to general geology, 1964: U.S. Geological Survey
   Bulletin, 1201-F, 43 p.

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Revised	Pedregosa basin

Summary:
Areally extended to Huachuca Mountains in the Pedregosa basin, where it locally and unconformably overlies Canelo Hills Volcanics (Triassic and Jurassic). Is subdivided into Glance Conglomerate, Morita Formation, Mural Limestone, and Cintura Formation. Overlies all older rocks with pronounced unconformity. Is assigned Early Cretaceous age on basis of fossils mainly from Mural Limestone and stratigraphically adjacent rocks (Stanton in Ransome, 1904; Stoyanow, 1949).

Summary of Citation: Bisbee

Publication:
Hayes, P.T., Simons, F.S. and Raup, R.B., 1965, Lower Mesozoic
   extrusive rocks in southeastern Arizona; the Canelo Hills
   Volcanics, IN Contributions to stratigraphy: U.S. Geological
   Survey Bulletin, 1194-M, p. M1-M9

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Pedregosa basin

Summary:
Extended to Huachuca Mountains in the Pedregosa basin, where it locally and unconformably overlies the newly named Canelo Hills Volcanics (Triassic and Jurassic). Subdivisions of group not stated. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Creasey, S.C., 1967, Geologic map of the Benson quadrangle,
   Cochise and Pima Counties, Arizona: U.S. Geological Survey
   Miscellaneous Investigations Series Map, I-470, 11 p., 1
   sheet, scale 1:48,000

Usage in Publication:
Bisbee? Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Overview	Pedregosa basin Basin-and-Range province

Summary:
Extended with uncertainty as a formation to Whetstone Mountains of Cochise (Pedregosa basin) and Pima (Basin-and-Range province) Cos, AZ. Rests unconformably on Permian strata. Unconformably overlain by Gila Conglomerate (Tertiary and Quaternary). Partial thickness measured as 7,271 ft in secs 2, 10, 11, and 15, T19S, R18E and secs 25, 35, and 36, T18S, R18E. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Creasey, S.C., 1967, General geology of the Mammoth quadrangle,
   Pinal County, Arizona: U.S. Geological Survey Bulletin, 1218,
   94 p., (incl. geologic map, scale 1:48,000)

Usage in Publication:
Bisbee? Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Pedregosa basin

Summary:
Extended with uncertainty as a formation to Whetstone Mountains of Cochise and Pima Cos, in the Pedregosa basin, AZ. Rests unconformably on Permian strata. Unconformably overlain by Gila Conglomerate (Tertiary and Quaternary). Partial thickness measured as 7,271 ft. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Hayes, P.T. and Raup, R.B., 1968, Geologic map of the Huachuca
   and Mustang Mountains, southeastern Arizona: U.S. Geological
   Survey Miscellaneous Investigations Series Map, I-509, 1
   sheet, scale

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Pedregosa basin

Summary:
Subdivided in Huachuca Mountains, Cochise Co, AZ in the Pedregosa basin into (ascending): Glance Conglomerate, Morita Formation, Mural Limestone, and Cintura Formation. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Drewes, Harald, 1968, New and revised stratigraphic names in
   the Santa Rita Mountains of southeastern Arizona, IN
   Contributions to stratigraphy, 1968: U.S. Geological Survey
   Bulletin, 1274-C, p. C1-C15

Usage in Publication:
Bisbee Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Revised	Basin-and-Range province Pedregosa basin

Summary:
Extended as an undivided formation to Santa Rita Mountains, southern Pima Co, Basin-and-Range province, and Santa Cruz Co, Pedregosa basin, AZ. Is of Early Cretaceous age. Upper part of Bisbee was called Fort Buchanan Formation of Sonoita Group by Stoyanow (1949). Author recommends Fort Buchanan and Sonoita be "dropped" from stratigraphic nomenclature.

Summary of Citation: Bisbee

Publication:
Hayes, P.T., 1970, Cretaceous paleogeography of southeastern
   Arizona and adjacent areas, IN Mesozoic stratigraphy in
   southeastern Arizona: U.S. Geological Survey Professional
   Paper, 658-B, p. B1-B42

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Not used locally Overview	Pedregosa basin Basin-and-Range province

Summary:
Bisbee Group subdivided (ascending) into Glance Conglomerate, Morita Formation, Mural Limestone, and Cintura Formation; recognized in Mule and Huachuca Mountains of Pedregosa basin. Bisbee Group (undivided) recognized in Pedregosa, Chiricahua, and Dos Cabezas Mountains of Pedregosa basin. Bisbee Group divided into Glance Conglomerate, and undivided Morita and Cintura Formations; recognized in Little Dragoon Mountains and nearby areas of Pedregosa basin. Bisbee Group divided into McGhee Peak Formation of Gillerman (1958), Carbonate Hill Limestone of Gillerman, and Still Ridge Formation of Gillerman; recognized in central Peloncillo Mountains of Pedregosa basin. Bisbee Group divided into Glance Conglomerate, Willow Canyon Formation, Apache Canyon Formation, Shellenberger Canyon Formation, and Turney Ranch Formation; recognized in Santa Rita, Empire, and Whetstone Mountains of Basin-and-Range province. Called Bisbee Formation in Dragoon Mountains and Tombstone area of Pedregosa basin and in the Patagonia Mountains of the Basin-and-Range province, where it replaces Molly Gibson Formation of Stoyanow (1949). Term Bisbee Group not used locally in Little Hatchet Mountains of Pedregosa basin and Basin-and-Range province. Rocks assignable to Bisbee have not been recognized north of Steele Hills, Cochise Co, AZ in Basin-and-Range province. [See fig. 5 for regional correlations.] Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Finnell, T.L., 1970, Formations of the Bisbee Group, Empire
   Mountains quadrangle, Pima County, Arizona, IN Cohee, G.V.,
   Bates, R.G., and Wright, W.B., Changes in stratigraphic
   nomenclature by the U.S. Geological Survey, 1968: U.S.
   Geological Survey Bulletin, 1294-A, p. A28-A35

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Revised	Pedregosa basin Basin-and-Range province

Summary:
Extended to Empire and Whetstone Mountains, Pima Co, AZ in Pedregosa basin and Basin-and-Range province. In Tombstone Hills, Dragoon Mountains, Mustang Mountains, Empire and northern Santa Rita Mountains, no equivalent of the Morita Limestone occurs and different subdivisions of the group are used. These are (ascending): Glance Conglomerate, Willow Canyon Formation, Apache Canyon Formation, Shellenberger Canyon Formation, and Turney Ranch Formation. Rests unconformably on rocks of probable Triassic age, and is unconformably overlain by rocks similar to rocks of known Late Cretaceous age. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Drewes, Harald, 1970, Structural control of geochemical anomalies
   in the Greaterville Mining district, southeast of Tucson,
   Arizona, IN Contributions to economic geology: U.S. Geological
   Survey Bulletin, 1312-A, p. A1-A49, (incl. geologic map,
   scale 1:24,000)

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Revised Overview	Basin-and-Range province

Summary:
Elevated to group rank in Santa Rita Mountains, Pima Co, AZ, Basin-and-Range province. Only the lower three formations are present. The Glance is only sparsely present. Divided into (ascending): Glance Conglomerate, Willow Canyon Formation, and Apache Canyon Formation on geologic map. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Drewes, H. and Williams, F.E., 1973, Mineral resources of the
   Chiricahua Wilderness area, Cochise County, Arizona, with a
   section on aeromagnetic interpretation by G.P. Eaton, IN
   Studies related to wilderness; wilderness areas: U.S. Geological
   Survey Bulletin, 1385-A, p. A1-A53, (incl. geologic map,
   scale 1:62,500)

Usage in Publication:
Bisbee Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Pedregosa basin

Summary:
Formation rather than Group used in central Chiricahua Mountains, in the Pedregosa basin. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Drewes, H. and Cooper, J.R., 1973, Reconnaissance geologic map
   of the west side of the Sierrita Mountains, Palo Alto Ranch
   quadrangle, Pima County, Arizona: U.S. Geological Survey
   Miscellaneous Field Studies Map, MF-538, 1 sheet, scale

Usage in Publication:
Bisbee Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Basin-and-Range province

Summary:
Extended as formation to west side of Sierrita Mountains. [Inasmuch as Cooper (1971) used the term Angelica Arkose for a presumed Bisbee equivalent on the east side of the Sierrita Mountains (closer to the type Bisbee), it seems inappropriate to use Bisbee on the west side of the range even if the rocks in question look more like the Bisbee than the rocks designated as Angelica--unless compelling reasons are given for the decision to do so--and they are not on this map.] Formation rather than group used in central Chiricahua Mountains, Pima Co, AZ in the Pedregosa basin. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Drewes, Harald, 1975, Geologic map and sections of the Happy
   Valley quadrangle, Cochise County, Arizona: U.S. Geological
   Survey Miscellaneous Investigations Series Map, I-832, 1
   sheet, scale

Usage in Publication:
Bisbee Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Pedregosa basin

Summary:
Extended to Rincon Mountains area, Cochise Co, AZ within Pedregosa basin. Glance Conglomerate Member mapped as basal unit of Bisbee. Overlies Walnut Gap Formation (redefined). Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Zeller, R.A., Jr., 1975, Structural geology of Big Hatchet Peak
   quadrangle, Hidalgo County, New Mexico: New Mexico Bureau of
   Mines and Mineral Resources Circular, no. 146

Usage in Publication:
Bisbee Group

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Pedregosa basin

Summary:
Extended to Big Hatchet Mountains area (in Pedregosa basin) where it includes (ascending): Hell-to-Finish Formation, U-Bar Formation, and Mojado Formation. Unconformably overlies Concha Limestone (Permian) and unconformably overlain by Little Hat Top Fanglomerate (Tertiary). Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Keith, S.B. and Barrett, L.F., 1976, Tectonics of the central
   Dragoon Mountains; a new look, IN Wilt, J.C., and Jenney,
   J.P., eds., Tectonic digest: Arizona Geological Society
   Digest, v. 10, p. 179-181

Usage in Publication:
Bisbee Group

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Pedregosa basin

Summary:
Bisbee used as group in Dragoon Mountains in Pedregosa basin [rather than formation as done by Gilluly (1956)]. Made up (in ascending order) of: sandstone lens, Glance Conglomerate, quartzite, and undivided clastic sediments. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Armstrong, A.K., Silberman, M.L., Todd, V.R., Hoggatt, W.C. and
   Carten, R.B., 1978, Geology of central Peloncillo Mountains,
   Hidalgo County, New Mexico: New Mexico Bureau of Mines and
   Mineral Resources Circular, no. 158, 19 p., (incl. geologic
   map, scale 1:24,000)

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Pedregosa basin

Summary:
Component formations mapped. In the Pedregosa basin, following Gillerman (1958), Bisbee Group includes (ascending): McGhee Peak Formation, Carbonate Hill Limestone, Still Ridge Formation, and Johnny Bull Sandstone, but the latter two were combined in mapping. Unconformably overlies various formations of Naco Group (Pennsylvanian and Lower Permian). Is variously overlain by Tertiary or Cretaceous extrusive rocks and intruded by Tertiary and Tertiary or Cretaceous intrusive rocks. Is Early Cretaceous age following Gillerman (1958).

Summary of Citation: Bisbee

Publication:
Drewes, Harald and Thorman, C.H., 1980, Geologic map of the
   Steins quadrangle and the adjacent part of the Vanar quadrangle,
   Hidalgo County, New Mexico: U.S. Geological Survey Miscellaneous
   Investigations Series Map, I-1220, 1 sheet, scale

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Pedregosa basin

Summary:
In the central Peloncillo Mountains, NM in Pedregosa basin, divided into Glance Conglomerate, Morita Formation, Mural Limestone, and Cintura Formation rather than into formations used by Gillerman (1958)--Glance Conglomerate, McGhee Peak Formation, Carbonate Hill Limestone, Still Ridge Formation, and Johnny Bull Sandstone--and more recently, in same area, by Armstrong and others (1978). [Correlation of Morita, Mural, and Cintura to this area from the type area of these formations in the Mule Mountains seems tenuous. Acceptance of Gillerman's and Armstrong and others' units (with modifications, if necessary) might have been wiser.] Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Drewes, Harald, 1980, Tectonic map of southeast Arizona: U.S.
   Geological Survey Miscellaneous Investigations Series Map,
   I-1109, 1 sheet, scale 1:125,000

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Pedregosa basin

Summary:
Also designated Bisbee Formation. In the Pedregosa basin, where group rank used, divided into Glance Conglomerate Member, Morita Formation, Mural Limestone, Cintura Formation, and upper part, rather than into formations used by Gillerman (1958)--Glance Conglomerate, McGhee Peak Formation, Carbonate Hill Limestone, Still Ridge Formation, and Johnny Bull Sandstone--and more recently, in same area, by Armstrong and others (1978). [Correlation of the Morita, Mural, and Cintura to this area from the type area of these formations in the Mule Mountains seems tenuous. Acceptance of Gillerman's and Armstrong and others' units (with modifications if necessary) might have been wiser.] Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Drewes, Harald, 1981, Tectonics of southeastern Arizona: U.S.
   Geological Survey Professional Paper, 1144, 96 p., (incl.
   geologic maps, scale 1:12,000, 1:24,000, 1:31,250, 1:31,680,
   1:48,000)

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Revised Overview	Pedregosa basin Basin-and-Range province

Summary:
Shown on correlation chart as Bisbee Group and as Bisbee Formation in both Pedregosa basin and Basin-and-Range province (plate 1). Formation elevated to group where mapped in Swisshelm (fig. 8) and Perilla Mountains (fig. 12). Elevated to group in Dragoon Mountains where Glance Conglomerate at base is overlain by undivided Morita and Cintura Formations. [In this latter case it might have been better to have retained usage of Gilluly (1956), i.e., Bisbee Formation with Glance Conglomerate Member rather than use of Bisbee Group as used by Cooper and Silver (1964) in the Little Dragoon Mountains area.] Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Hayes, P.T., 1982, Geologic map of Bunk Robinson Peak and Whitmire
   Canyon Roadless areas, Coronado National Forest, New Mexico
   and Arizona: U.S. Geological Survey Miscellaneous Field
   Studies Map, MF-1425-A, 1 sheet, scale

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Pedregosa basin

Summary:
Name not used, but three formations of group (Morita Formation, Mural Limestone, and Cintura Formation) mapped separately, thus automatically elevating Bisbee (previously mapped by Cooper (1959) as a formation) to group rank in Hidalgo Co, NM in the Pedregosa basin area. Is of Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Bilodeau, W.L., Kluth, C.F. and Vedder, L.K., 1987, Regional
   stratigraphic sedimentologic and tectonic relationships of
   the Glance Conglomerate in southwestern Arizona, IN Dickinson,
   W.R., and Klute, M.A., eds., Mesozoic rocks of southern
   Arizona and adjacent areas: Arizona Geological Society Digest,
   v. 18, p. 229-256

Usage in Publication:
Bisbee Group

Modifications:	Geologic Province:	Dominant Lithology:
Age modified	Pedregosa basin Basin-and-Range province

Summary:
Age of Glance Conglomerate, basal formation of Bisbee Group, changed from Early Cretaceous to Late Jurassic and Early Cretaceous. Age of lower part of Glance is better known than the upper part. Ages of 147 +/-6 Ma (K/Ar on biotite) and 149 +/-11 Ma (Rb/Sr whole rock) determined on volcanic rocks in lower part in Lone Mountain area. Age of 151 +/-2 Ma (Rb/Sr whole rock) for rocks in lower part in northern Canelo Hills. Basal part considered to be about 150 Ma or Late Jurassic. Age of upper part of Glance is uncertain. Invertebrate fauna of Aptian-Albian age found in Mural Limestone in upper part of Bisbee. Upper part of Glance could be as old as Late Jurassic or as young as late Early Cretaceous. Geologic maps. Correlation chart. Bisbee Group shown as ranging from Late Jurassic (c. 150 Ma) into Early Cretaceous (c. 115 Ma).

Summary of Citation: Bisbee

Publication:
Drewes, Harald, 1991, Geologic map of the Big Hatchet Mountains,
   Hidalgo County, New Mexico: U.S. Geological Survey Miscellaneous
   Investigations Series Map, I-2144, 1 sheet, scale 1:24,000

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Mapped 1:24k Revised	Pedregosa basin	Siltstone Shale Sandstone Limestone Conglomerate

Summary:
Four formations of Bisbee mapped individually in Big Hatchet Mountains, Hidalgo Co, NM, (Pedregosa basin). Revised in that conglomerate in lower part of Hell-to-Finish Formation of Bisbee as defined by Zeller (1965) is removed from Hell-to-Finish and assigned to Glance Conglomerate of Bisbee. Also andesite and redbeds in Big Horn Canyon area are removed from Zeller's (1960) Hell-to-Finish and assigned to lower part of Oligocene volcanic and sedimentary sequence. Is comprised of marine and nonmarine, clastic and limestone deposits. Bisbee in Big Hatchet Mountains consists of, in ascending order, Glance Conglomerate, Hell-to-Finish Formation, U-Bar Formation and Mojado Formation. Combined thickness is 3,050-3,100 m (9,900-10,000 ft). Assigned Early Cretaceous age.

Summary of Citation: Bisbee

Publication:
Force, E.R., 1996, The Bisbee Group of the Tombstone Hills,
   southeastern Arizona;  stratigraphy, structure, metamorphism,
   and mineralization, IN Mineral resource studies along the
   Sierrita-Mogollon transect, Arizona-New Mexico: U.S. Geological
   Survey Bulletin, 2042-B, p. B1-B22, (incl. geologic map,
   scale 1:12,000)

Usage in Publication:
Bisbee Group*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Pedregosa basin

Summary:
Uses group rank following Butler and others (1938) in Tombstone Hills, Cochise Co, AZ, Pedregosa basin. Divided into informal lower and upper parts. Study area is divided into western area and Tombstone basin. Bisbee is locally more intensely metamorphosed in western area than in Tombstone basin and is deformed into dome-and-basin folds, but lacks complex faulting, especially decollement faulting, characteristic of Tombstone basin. Thickness of lower part ranges from 51-170 m; coarsest clasts occur to northwest where lower part is a sedimentary megabreccia; in Tombstone basin thickness and grain size decrease to northeast, whereas limestone increases to northeast. Upper part of Bisbee is similar in both areas; coarsens upward from mostly argillite with minor limestone and tuff to mostly sandstone; thickness ranges from 260-500 m (minimum). Intruded by Late Cretaceous Uncle Sam Porphyry and Schieffelin Granodiorite and by Late Cretaceous and early Tertiary porphyry dikes; overlies Paleozoic sedimentary rocks. Total exposed thickness of Bisbee is 425 m. Geologic map. Lower part may be equivalent to Glance Conglomerate though relationship is uncertain at this time. Therefore, age assignment is Late Jurassic? and Early Cretaceous (following Bilodeau and others, 1987).