Origin of zeolite cements in the Miocene sandstones, North Tejon Oil Fields, California

Journal Article · Mon Mar 01 04:00:00 EST 1993 · Journal of Sedimentary Petrology; (United States)

OSTI ID:6237653

Noh, Jin Hwan ^[1]; Boles, J R ^[2]

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1. Kangweon National Univ., Chuncheon (Korea, Republic of)
2. Univ. of California, Santa Barbara (United States)

Zeolite cement zoning from heulandite via heulandite + laumontite is found in Miocene volcaniclastic sandstones at the North Tejon Oil field, southern San Joaquin basin, California. The zeolite transition occurs at the depth range from 2,703-2,743 m (present temperature range: 90-92 C). Heulandite and minor smectite forms together from the dissolution of volcanic glass during early diagenesis. At depths shallower than 2,743 m, early laumontite forms directly at the expense of heulandite. This reaction is based on the volumetrical relation between both zeolites and the absence of quartz cements during the zeolite transition. The sources of the Ca and Al appear to be partial dissolution of plagioclase and smectite occurring prior to the above reaction and incorporation of residual smectite coatings at that reaction time. Active albitization and late laumontite formation begin to occur in the laumontite-bearing sandstones at depths greater than 2,743 m (present temperatures greater than 94 C). Clay mineral transitions from smectite via mixed-layer clay minerals (C/S or I/S) to chlorite or illite probably produced the H[sub 4]SiO[sub 4] necessary for the above reaction. In addition to the albitization, the source of late laumontite was derived, in part, from a mass transfer from outside. During the late laumontite formation, calcite locally forms and acts as an additional sink for Ca immediately adjacent to deformed biotite flakes.

• OSTI ID: 6237653
• Journal Information: Journal of Sedimentary Petrology; (United States), Journal Name: Journal of Sedimentary Petrology; (United States) Vol. 63:2; ISSN JSEPAK; ISSN 0022-4472
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580000* -- Geosciences
CALIFORNIA
CENOZOIC ERA
DEVELOPED COUNTRIES
DIAGENESIS
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC MODELS
GEOLOGIC STRUCTURES
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERAL RESOURCES
MINERALOGY
MINERALS
MIOCENE EPOCH
NORTH AMERICA
ORIGIN
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY BASINS
SEDIMENTARY ROCKS
SILICATE MINERALS
TERTIARY PERIOD
USA
ZEOLITES