Miocene marine rocks and Franciscan schist (CAMI+KJfs;0)

State	California
Name	Miocene marine rocks and Franciscan schist
Geologic age	Cretaceous(?) to Miocene
Lithologic constituents	Major Sedimentary > Clastic > Siltstone (Bed) Sedimentary > Clastic > Conglomerate (Bed) Sedimentary > Clastic > Sandstone (Bed) Minor Sedimentary > Clastic > Mudstone (Bed) Igneous > Hypabyssal > Felsic-hypabyssal (Dike or sill)Intrusive into associated sedimentary rocks Sedimentary > Clastic > Sedimentary-breccia Igneous > Hypabyssal > Mafic-hypabyssal (Dike or sill)Intrusive into associated sedimentary rocks
Comments	Small outcrop area at east end of Santa Catalina Island. Shown as Franciscan on Long Beach sheet of Geologic Atlas of California, but later shown to be Cretaceous(?) to Miocene(?) sedimentary rocks intruded by Miocene dacitic and gabbroic rocks
References	Jennings, C.W., Strand, R.G., Rogers, T.H., Boylan, R.T., Moar, R.R., and Switzer, R.A., 1977, Geologic Map of California: California Division of Mines and Geology, Geologic Data Map 2, scale 1:750,000. Jennings, C.W., 1985, An explanatory text to accompany the 1:750,000 scale fault and geologic maps of California: California Division of Mines and Geology, Bulletin 201, 197 p. Jennings, C.W., 1962, Geologic map of California, Olaf P. Jenkins edition, Long Beach sheet, scale 1:250,000. Rowland, S.M., 1984, Geology of Santa Catalina Island: California Geology, v. 37, no. 11, p. 239-251. Vedder, J.G., Howell, D.G., and Forman, J.A., 1979, Miocene strata and their relation to other rocks, Santa Catalina Island, California, in Armentrout, J.M., Cole, M.R., and TerBest, L., Jr., eds., Cenozoic paleogeography of the western United States: Society of Economic Paleontologists and Mineralogists, Pacific Section, Pacific Coast Paleogeography Symposium 3, p. 239-256.
NGMDB product	NGMDB product page for 96750
Counties	Los Angeles

State

California

Name

Miocene marine rocks and Franciscan schist

Geologic age

Cretaceous(?) to Miocene

Lithologic constituents

Major

Sedimentary > Clastic > Siltstone (Bed)

Sedimentary > Clastic > Conglomerate (Bed)

Sedimentary > Clastic > Sandstone (Bed)

Minor

Sedimentary > Clastic > Mudstone (Bed)

Igneous > Hypabyssal > Felsic-hypabyssal (Dike or sill)Intrusive into associated sedimentary rocks

Sedimentary > Clastic > Sedimentary-breccia

Igneous > Hypabyssal > Mafic-hypabyssal (Dike or sill)Intrusive into associated sedimentary rocks

Comments

Small outcrop area at east end of Santa Catalina Island. Shown as Franciscan on Long Beach sheet of Geologic Atlas of California, but later shown to be Cretaceous(?) to Miocene(?) sedimentary rocks intruded by Miocene dacitic and gabbroic rocks

References

Jennings, C.W., Strand, R.G., Rogers, T.H., Boylan, R.T., Moar, R.R., and Switzer, R.A., 1977, Geologic Map of California: California Division of Mines and Geology, Geologic Data Map 2, scale 1:750,000.

Jennings, C.W., 1985, An explanatory text to accompany the 1:750,000 scale fault and geologic maps of California: California Division of Mines and Geology, Bulletin 201, 197 p.

Jennings, C.W., 1962, Geologic map of California, Olaf P. Jenkins edition, Long Beach sheet, scale 1:250,000.

Rowland, S.M., 1984, Geology of Santa Catalina Island: California Geology, v. 37, no. 11, p. 239-251.

Vedder, J.G., Howell, D.G., and Forman, J.A., 1979, Miocene strata and their relation to other rocks, Santa Catalina Island, California, in Armentrout, J.M., Cole, M.R., and TerBest, L., Jr., eds., Cenozoic paleogeography of the western United States: Society of Economic Paleontologists and Mineralogists, Pacific Section, Pacific Coast Paleogeography Symposium 3, p. 239-256.

NGMDB product

NGMDB product page for 96750

Counties

Los Angeles