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Map showing publication footprint
  • Usage in publication:
    • Alisitos formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Slate
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Santillan, Manuel, and Barrera, Tomas, 1930, Las posibilidades petroliferas en la costa occidental de la Baja California, entre los paralelos 30 y 32 de latitud norte: Anales del Instituto Geologico de Mexico [City], v. 5, p. 1-37.


Summary:

Named for slates and metamorphosed sandstone near Alisitos Ranch, Santo Tomas R., Baja California, Mexico. Is from 5 cm to 200 m thick. Assigned Early Cretaceous age on basis of fossils identified by B.L. Clark, Univ. of California.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Alisitos formation
  • Modifications:
    • Age modified
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Allison, E.C., 1955, Middle Cretaceous Gastropoda from Punta China, Baja California, Mexico: Journal of Paleontology, v. 29, no. 3, p. 400-432.


Summary:

Consists of upper member of biohermal limestones and lower member of fine sediments in Punta China section. Upper member is middle Albian age on basis of Gastropoda and Foraminifera. Lower member is Aptian(?) age based on environment and fossils.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Alisitos Formation
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Gastil, R.G., 1961, The Mesozoic framework, IN Guidebook for field trips; San Diego County-1961: Geological Society of America, Cordilleran Section, Guidebook for Field Trips, 57th annual meeting, San Diego, CA, p. 4-7.


Summary:

"Certain rocks in western San Diego [County], previously ascribed to 'Julian Schist' are actually Alisitos Formation."

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Alisitos Formation
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Milow, E.D., and Ennis, D.B., 1961, Guide to geologic field trip [no. 2] of southwestern San Diego County [California], IN Guidebook for field trips; San Diego County-1961: Geological Society of America, Cordilleran Section, Guidebook for Field Trips, 57th annual meeting, San Diego, CA, p. 23-43.


Summary:

Name Alisitos formation (Santillan and Barrera, 1930) is used for Santiago Peak volcanics (Larsen, 1948) and San Fernando formation (Anon, 1924; Beal, 1948). Consists of 3 unnamed members. Is about 5000 ft thick. Unconformably overlies Bedford formation in California and San Telmo formation in Baja California, Mexico. Unconformably underlies Rosario formation in Baja California. Assigned Early Cretaceous age.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Alisitos Formation
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Silver, L.T., Stehli, F.G., and Allen, C.R., 1963, Lower Cretaceous pre-batholithic rocks of northern Baja California, Mexico: American Association of Petroleum Geologists Bulletin, v. 47, no. 12, p. 2054-2059. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Name "Alisitos Formation" applied to rocks of Ensenada-Colonia Guerrero area. See Fig.1

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Alisitos Formation
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Allison, E.C., 1964, Geology of areas bordering Gulf of California, IN Van Andel, T.H., and Shor, G.G., Jr., eds., Marine Geology of the Gulf of California; a symposium: American Association of Petroleum Geologists Memoir, 3, p. 3-29. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Should include rocks of San Fernando Formation (type locality near Dominican Mission, San Fernando, 325 km south of northern boundary of Baja California), based on distinctive lithologies and paleontological similarities.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Alisitos Formation
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Fife, D.L., Minch, J.A., and Crampton, P.J., 1967, Late Jurassic age of the Santiago Peak Volcanics, California, IN Short Note: Geological Society of America Bulletin, v. 78, no. 2, p. 299-304.


Summary:

Name "Alisitos Formation" not justified for Santiago Peak Volcanics (as if it were a northern extension) because age differences exist between the two formations.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Alisitos Formation
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Allison, E.C., 1974, The type Alisitos Formation (Cretaceous, Aptian-Albian) of Baja California and its bivalve fauna, IN Gastil, R.G., and Lillegraven, Jason, eds., A guidebook to the geology of peninsular California: American Association of Petroleum Geologists, Pacific Section, Field Trip Guidebook, Joint annual Spring meeting of American Association of Petroleum Geologists, Pacific Section, Society of Economic Paleontologists and Mineralogists, Pacific Section, and Society of Exploration Geophysicists, April, 1974, no. 49, p. 20-59.


Summary:

Mapped [as of 1964] in type area from Punta China and Los Muertos on the coast to the valley of Santo Tomas River. Is 7500 m thick.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Alisitos Group
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Peninsular Ranges province
Publication:

Beggs, J.M., 1984, Volcaniclastic rocks of the Alisitos Group, Baja California, Mexico, IN Frizzell, V.A., Jr., ed., Geology of the Baja California Peninsula: Society of Economic Paleontologists and Mineralogists, Pacific Section, Field Trip Guidebook, book 39, p. 1-7.


Summary:

Called "Alisitos Group". Divided into 7 facies: A. welded tuff, B. large-volume pumiceous tuff-breccia, C. small-volume lithic-vitric tuff-breccia, D. "double-graded" sequences, E. pyroclastic fallout tuff, F. hydroclastic agglomerate-breccia, and G. lahar breccia. [Name "Alisitos Group" not appropriate because "named" formations are not designated within group]

Source: GNU records (USGS DDS-6; Menlo GNULEX).


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"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

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