GEOLEX

Summary of Citation: Abrigo

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:
Abrigo limestone*

Modifications:	Geologic Province:	Dominant Lithology:
Named	Pedregosa basin	Limestone Shale Quartzite

Summary:
Named for Abrigo Canyon, 3 mi southwest of Bisbee, T23S, Rs23 and 24E, Cochise Co, AZ in Pedregosa basin. Type locality not designated. Typical section measured [but not described in report] on Mount Martin where it is 770 ft thick. Rests conformably on Middle Cambrian Bolsa quartzite (new) and is overlain by Devonian Martin limestone (new). Made up of thin-bedded (to 2 ft thick), very cherty limestones; gray limestone alternating with fissile, yellowish, calcareous shales; rather soft sandy gray limestone; and capped by 8 ft bed of pure white quartzite. Fossils (trilobites, brachiopods, pteropods, etc) identified by Charles D. Wolcott are Middle Cambrian. Marine. Geologic map. Cross sections. Columnar section.

Summary of Citation: Abrigo

Publication:
Walcott, C.D., 1912, Cambrian Brachiopoda: U.S. Geological Survey
   Monograph, 51, pt. 1, p. 186

Usage in Publication:
Abrigo limestone*

Modifications:	Geologic Province:	Dominant Lithology:
Biostratigraphic dating	Basin-and-Range province

Summary:
Middle Cambrian Brachiopoda, OBOLUS MCCONNELLI, collected about 400 ft (122m) above the bottom of Tombstone Gulch, in Abrigo limestone (Ransome, 1904, p.3), in NW suburb of Bisbee, Cochise Co, AZ.

Summary of Citation: Abrigo

Publication:
Eckel, E.C., 1913, Portland cement resources of Arizona, IN
   Portland cement materials and industry in the United States:
   U.S. Geological Survey Bulletin, 522, p. 90-91

Usage in Publication:
Abrigo limestone*

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

Summary:
Analyses of Cambrian limestone from Bisbee district, southeast AZ by W.F. Hillebrand on samples collected by F.L. Ransome.

Summary of Citation: Abrigo

Publication:
Jones, E.L. and Ransome, F.L., 1920, Deposits of manganese ore
   in Arizona, IN Contributions to economic geology, 1919; Part
   1, Metals and nonmetals except fuels: U.S. Geological Survey
   Bulletin, 710-D, p. D93-D184

Usage in Publication:
Abrigo limestone*

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

Summary:
Called Upper Cambrian. Extended to Tombstone District, Cochise Co, AZ in the Pedregosa basin. Is Late Cambrian in age.

Summary of Citation: Abrigo

Publication:
Darton, N.H., 1925, A resume of Arizona geology: Arizona Bureau
   of Mines Bulletin, no. 119, 208 p., Prepared in cooperation
   with the U.S. Geological Survey.  Also, Arizona Bureau of
   Mines Geological Series, no. 3.

Usage in Publication:
Abrigo limestone*

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

Summary:
Said to be present in Whetstone, Dragoon, Swisshelm, and Chiricahua Mountains, of Pedregosa basin and in Tucson, Vekol, Patagonia, and Santa Catalina Mountains, of Basin-and-Range province. Fossils collected at several localities indicate the formation is Upper Cambrian and possibly younger.

Summary of Citation: Abrigo

Publication:
Stoyanow, A.A., 1936, Correlation of Arizona Paleozoic formations:
   Geological Society of America Bulletin, v. 47, no. 4, p.
   459-540

Usage in Publication:
Abrigo formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised Redescribed Biostratigraphic dating	Pedregosa basin Basin-and-Range province

Summary:
Restricted to part of original formation and redescribed as formation rather than limestone. Upper 81 ft 8 in separated from original Abrigo at Mount Martin, Pedregosa basin, and named Copper Queen limestone. Beds of original Abrigo below CREPICEPHALUS TEXANUS and HESPERASPIS BUTLER: separated into newly named Cochise formation (290 ft thick). The original Abrigo of the Whetstone Mountains in the Pedregosa basin divided into (ascending): Pima sandstone (new), Cochise formation, Abrigo formation, and Rincon limestone (new). Abrigo of the Santa Catalina Mountains in Basin-and-Range province divided into (ascending): Santa Catalina formation (new), Southern Belle quartzite (new), Abrigo formation, and Peppersauce Canyon sandstone (new). Is of Late Cambrian age.

Summary of Citation: Abrigo

Publication:
Grabau, A.W., 1937, Paleozoic formations in the light of the
   pulsation theory; Volume 3, Cambrovician pulsation; Part 2,
   xxx, Appalachian, Paleocordilleran, Pre-Andean, Himalyan,
   and Cathaysian geosynclines: University Press, National
   University of Peking, 850 p.

Usage in Publication:
Abrigo formation

Modifications:	Geologic Province:	Dominant Lithology:
Age modified	Pedregosa basin

Summary:
Called Middle Cambrian.

Summary of Citation: Abrigo

Publication:
Wilson, E.D., 1941, Tungsten deposits of Arizona: Arizona Bureau
   of Mines Bulletin, no. 148, 54 p., Also, Arizona Bureau of
   Mines Geological Series, no. 14; University of Arizona
   Bulletin, v. 12, no. 2.

Usage in Publication:
Abrigo limestone

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

Summary:
Recognized in Huachuca Mountains, Cochise Co, AZ in the Pedregosa basin. Is of Cambrian age.

Summary of Citation: Abrigo

Publication:
Howell, B.F., Bridge, Josiah, Deiss, C.F., Denson, N.M., Edwards,
   Ira, Lochman, Christina, Mason, J.F., Raasch, G.O. and Resser,
   C.E., 1944, Correlation of the Cambrian formations of North
   America; [Chart No. 1]: Geological Society of America Bulletin,
   v. 55, no. 8, p. 993-1003

Usage in Publication:
Abrigo limestone

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

Summary:
Shown as Middle and Upper Cambrian. Uncertain as to whether subdivided into or equivalent to (ascending): Pima formation, Cochise formation, Peppersauce Canyon sandstone, Copper Queen formation, and Rincon limestone, in Pedregosa basin and Basin-and-Range province.

Summary of Citation: Abrigo

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:
Abrigo formation*

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

Summary:
Extended to Little Dragoon Mountains, AZ in Pedregosa basin and divided into lower, middle, and upper members. Overlies Bolsa quartzite (Cambrian) and overlain by Martin limestone (Devonian). Abrigo formation rather than Abrigo limestone used in this area.

Summary of Citation: Abrigo

Publication:
Wilson, E.D., 1950, Pima district, Chapter 4, IN Part 1 of
   Arizona zinc and lead deposits: Arizona Bureau of Mines
   Bulletin, no. 156, p. 39-51, Also, Arizona Bureau of Mines
   Geological Series, no. 18; University of Arizona Bulletin,
   v. 21, no. 2.

Usage in Publication:
Abrigo formation

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

Summary:
Identified in Sierrita Mountains, AZ in Basin-and Range province. Is of Cambrian age.

Summary of Citation: Abrigo

Publication:
Jones, S.M. and Bacheller, W.D., 1953, Measured sections near
   Dos Cabezas, Arizona, IN Kottlowski, F.E., ed., Guidebook of
   southwestern New Mexico: New Mexico Geological Society
   Guidebook, no. 4, 153 p.

Usage in Publication:
Abrigo limestone

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Age modified Biostratigraphic dating	Pedregosa basin

Summary:
Used in the unrestricted sense on the graphic section measured near Dos Cabezas, Cochise Co, AZ in Pedregosa basin as overlying Bolsa quartzite, (Cambrian) and overlain by Morenci shale (Devonian). Contains fossils of Ordovician age. Is of Cambrian and Ordovician age.

Summary of Citation: Abrigo

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:
Abrigo limestone*

Modifications:	Geologic Province:	Dominant Lithology:
Revised Age modified Biostratigraphic dating Overview	Pedregosa basin

Summary:
Restricted Abrigo formation of Stoyanow (1936) rejected. Measured sections and fossil (trilobites) collections from Little Dragoon (803 ft thick), Dragoon (835 ft thick), Swisshelm (778 ft thick), and Whetstone (749 ft thick) Mountains, and Tombstone Hills (844 ft thick) in Cochise Co, AZ are presented. In these sections, Abrigo is underlain by Bolsa quartzite and overlain by Martin formation. Geologic map. Is of Middle and Late Cambrian age.

Summary of Citation: Abrigo

Publication:
Epis, R.C. and Gilbert, C.M., 1957, Early Paleozoic strata in
   southeastern Arizona: American Association of Petroleum
   Geologists Bulletin, v. 41, no. 10, p. 2223-2242

Usage in Publication:
Abrigo limestone

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Pedregosa basin

Summary:
Restricted to lower part of Abrigo as measured by Gilluly (1956) in the Swisshelm Mountains. The term Abrigo limestone as used by Jones and Bacheller (1953) near Dos Cabezas not warranted. Is of Middle Cambrian age.

Summary of Citation: Abrigo

Publication:
Krieger, M.H., 1961, Troy Quartzite (younger Precambrian) and
   Bolsa and Abrigo Formations (Cambrian), northern Galiuro
   Mountains, southeastern Arizona, IN Geological Survey research
   1961; short papers in the geologic and hydrologic sciences;
   Articles 147-292: U.S. Geological Survey Professional Paper,
   424-C, p. C160-C164

Usage in Publication:
Abrigo Formation*

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

Summary:
Recognized in Galiuro Mountains, Pinal Co, AZ in Basin-and-Range province. Overlies Bolsa Quartzite. Overlain by Martin Limestone. 529 ft thick. Abrigo Formation rather than Abrigo Limestone more appropriate in and north of Santa Catalina Mountains. Is of Cambrian age.

Summary of Citation: Abrigo

Publication:
Peterson, D.W., 1962, Preliminary geologic map of the western
   part of the Superior quadrangle, Pinal County, Arizona: U.S.
   Geological Survey Miscellaneous Field Studies Map, MF-253,
   1 sheet, scale 1:12,000

Usage in Publication:
Abrigo formation

Modifications:	Geologic Province:	Dominant Lithology:
Not used	Basin-and-Range province

Summary:
"Cambrian rocks undifferentiated" mapped in western part of Superior 7.5' quad, Pinal Co, AZ. Upper part consists of quartzite; lower part, poorly sorted, grayish-to-reddish-brown mudstone, arkosic sandstone, pebble conglomerate, and graywacke. Is 0 to 360 ft thick. Disconformably underlies Martin limestone; unconformably overlies diabase (Precambrian).

Summary of Citation: Abrigo

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:
Abrigo limestone*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Pedregosa basin

Summary:
Exposed in all areas of older [lower Paleozoic] rocks except in northeastern part of quad (see geologic map), Pedregosa basin. Lower contact gradational with Bolsa quartzite. Overlain disconformably by Martin formation. Correlation of parts of the Abrigo with formations named by Stoyanow. Faunas in quad range from late Middle Cambrian through the early two-thirds of Late Cambrian. Most of the genera are common to the western U.S.--trilobites of Cedaria, Elvinia, Crepicephalus zones, etc. Geologic map.

Summary of Citation: Abrigo

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:
Abrigo Limestone*

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

Summary:
Restriction of Abrigo as proposed by Stoyanow (1936) rejected. Type section in SW1/4, SE1/4 sec 7, T23S, R24E, Cochise Co, AZ in Pedregosa basin remeasured. Overlies Bolsa Quartzite with gradational contact. Upper contact revised 70 ft downward from that used in original definition (Ransome, 1904). Is overlain disconformably by Martin Limestone (Devonian). Copper Queen Limestone of Stoyanow (1936) accepted as top member of Abrigo. Divided into (ascending): shaly member (252 ft), ribbed limestone member (201 ft), sandy member (166 ft), and Copper Queen Limestone Member (94 ft). Shaly member is light-olive-gray to grayish-orange-pink-weathering medium-gray limestone. Ribbed limestone member is light-gray-weathering medium-gray silty laminated micritic-skeletal limestone and mottled-light-gray to light-olive-gray-weathering mottled-grayish-orange-pink to medium-light-gray, partially recrystallized detrital-micritic limestone and micritic-detrital limestone edgewise conglomerate. Sandy member is pale to moderate yellowish brown interlaminated calcareous sandstone and limestone in lower part, and remainder is interbedded cross-laminated olive-gray dolomite and cross-laminated olive-gray dolomite-cemented glauconitic quartz sandstone. Copper Queen Member is thin-bedded laminated medium-gray to pinkish-gray limestone. Generally represents slow deposition in quiet marine water of moderate depth. Is of Middle and Late Cambrian age (fossils listed).

Summary of Citation: Abrigo

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:
Abrigo Limestone*

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

Summary:
Measured sections in W1/2 sec 13, T18S, R18E, Pima Co, AZ, Basin-and-Range province, 808 ft thick and in SW1/4 sec 34, T18S, R19E, Cochise Co, AZ, Pedregosa basin, 867 ft thick described.

Summary of Citation: Abrigo

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:
Abrigo Formation*

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

Summary:
In northern Santa Catalina Mountains in Basin-and-Range province, Peppersauce Canyon Sandstone of Stoyanow (1936), and Abrigo Formation as used by Stoyanow (1936) combined as top Peppersauce Member (335 ft thick) of Abrigo Formation; Southern Belle Quartzite of Stoyanow (1936) accepted as middle Southern Belle Member (70 ft thick). Beds included in Santa Catalina Formation of Stoyanow (1936) here named the basal Three C Member (330 ft thick). Is of Middle and Late Cambrian age.

Summary of Citation: Abrigo

Publication:
Krieger, M.H., 1968, Stratigraphic relations of the Troy Quartzite
   (younger Precambrian) and the Cambrian formations in southeastern
   Arizona, IN Titley, S.R., ed., Southern Arizona guidebook
   III: Arizona Geological Society Guidebook, p. 22-32

Usage in Publication:
Abrigo Formation*

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

Summary:
Subdivided on a regional basis into lower, middle, and upper members. Used in Swisshelm Mountains, in Cochise Co, AZ in the Pedregosa basin in unrestricted sense in that an upper unit of the upper member considered part of Abrigo rather than restricted sense of Epis and Gilbert (1957). Used in Little Dragoon, Dos Cabezas and northern Chiricahua Mountains in the Pedregosa basin. Also recognized in the Galiuro, Santa Catalina, and Whetstone Mountains of the Pedregosa basin and Basin-and-Range province. Correlation chart. [The use of Abrigo in Dos Cabezas and Chiricahua Mountains later rejected by Hayes (1972).] Is of late Middle and Late (Dresbach and Franconia) Cambrian age.

Summary of Citation: Abrigo

Publication:
Miller, F.K., 1970, Geologic map of the Quartzite quadrangle,
   Yuma County, Arizona: U.S. Geological Survey Geologic Quadrangle
   Map, GQ-841, 1 sheet, scale 1:62,500

Usage in Publication:
Abrigo? Formation*

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

Summary:
Extended provisionally to Palomas Mountains, Yuma Co, AZ in Basin-and-Range province. 150 ft thick. Overlies Bolsa? Quartzite. Overlain by Martin? Formation. Is of Cambrian age. No fossils were found except for animal tracks or worm trails.

Summary of Citation: Abrigo

Publication:
Hayes, P.T., 1972, Stratigraphic nomenclature of Cambrian and
   Lower Ordovician rocks of easternmost southern Arizona and
   adjacent westernmost New Mexico, IN Contributions to
   stratigraphy: U.S. Geological Survey Bulletin, 1372-B, p.
   B1-B21

Usage in Publication:
Abrigo Formation*

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

Summary:
Eastern limit in southeastern AZ shown in Pedregosa basin and Basin-and-Range province. Formation rather than limestone accepted, except near the type locality. Copper Queen Member rather than Copper Queen Limestone Member (at top) and informal sandy, middle and lower members extended geographically. Replaced in Dos Cabezas and northern Chiricahua Mountains by Coronado Sandstone and lower part of El Paso Limestone. Overlies Bolsa Quartzite. Is of Middle and Late Cambrian age.

Summary of Citation: Abrigo

Publication:
Cooper, J.R., 1973, Geologic map of the Twin Buttes quadrangle,
   southwest of Tucson, Pima County, Arizona: U.S. Geological
   Survey Miscellaneous Investigations Series Map, I-745, 1
   sheet, scale 1:48,000

Usage in Publication:
Abrigo Formation*

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

Summary:
Small outcrops mapped near Twin Buttes in Twin Buttes 15' quad, Pima Co, AZ. Shown in cross section. Consists of quartzite, shale, and limestone. Disconformably underlies Martin Formation (Devonian) and overlies Bolsa Quartzite (Cambrian). Assigned Cambrian age.

Summary of Citation: Abrigo

Publication:
Hayes, P.T., 1975, Cambrian and Ordovician rocks of southern
   Arizona and New Mexico and westernmost Texas: U.S. Geological
   Survey Professional Paper, 873, 98 p.

Usage in Publication:
Abrigo Formation*

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

Summary:
A summary. Correlated regionally. Conditions of deposition interpreted on bases of regional correlations and sedimentary structures. New sections described. Is of Middle and Late Cambrian age. Divided into lower, middle, and upper sandy members, and Copper Queen Member. Extensive list of fossils (trilobites, brachiopods) in all four members. Measured section at Brandenburg Mountain N1/2 SW1/4 sec 7, T6S, R17E, northern Galiuro Mountains, Pinal Co, AZ described. In that section Abrigo is 603 ft thick, and it overlies Bolsa Quartzite and underlies Martin Formation.

Summary of Citation: Abrigo

Publication:
Force, E.R., in press, Geology and mineral resources of a
   Tucson-to-San Manuel transect across the Santa Catalina
   Mountains, southeastern Arizona, IN Mineral resource studies
   along the Sierrita-Mogollon transect, Arizona-New Mexico:
   U.S. Geological Survey Bulletin, 2042-A

Usage in Publication:
Abrigo Formation*

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

Summary:
Uppermost approximately 50 m removed and assigned to new informal Mt. Lemmon unit. Study area is within Santa Catalina Mountains, Pima Co, AZ (Basin-and-Range province). Conformably overlies Bolsa Quartzite (Middle Cambrian); disconformably underlies Martin Formation (Upper Devonian) or Mt. Lemmon unit (Lower and(or) Middle Devonian). Assigned Middle and Late Cambrian age.