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GEOREF RECORD
Ikaite, CaCO (sub 3) .6H (sub 2) O, precursor of the thinolites in the Quaternary tufas and tufa mounds of the Lahontan and Mono Lake basins, western United States
D. J. Shearman, A. McGugan, C. Stein and A. J. Smith
Ikaite, CaCO (sub 3) .6H (sub 2) O, precursor of the thinolites in the Quaternary tufas and tufa mounds of the Lahontan and Mono Lake basins, western United States
Geological Society of America Bulletin (July 1989) 101 (7): 913-917
Ikaite, CaCO (sub 3) .6H (sub 2) O, precursor of the thinolites in the Quaternary tufas and tufa mounds of the Lahontan and Mono Lake basins, western United States
Geological Society of America Bulletin (July 1989) 101 (7): 913-917
Index Terms/Descriptors
- Basin and Range Province
- California
- carbonates
- Cenozoic
- chemically precipitated rocks
- environment
- Great Basin
- hydrates
- ikaite
- lacustrine environment
- Lake Lahontan
- minerals
- Mono County California
- Mono Lake
- Nevada
- North America
- Oregon
- paleoclimatology
- paleogeography
- paleotemperature
- Pleistocene
- pseudomorphism
- Quaternary
- sedimentary rocks
- sedimentation
- stratigraphy
- textures
- tufa
- United States
- Western U.S.
- eastern California
- thinolite
Latitude & Longitude
Abstract
The thinolites in the Quaternary tufas and tufa mounds of the Lahontan and Mono Lake basins of the western United States are identified as being pseudomorphous after crystals of the mineral ikaite, CaCO (sub 3) .6H (sub 2) O. Ikaite is a metastable mineral in the sedimentary realm. It crystallizes from solution at temperatures close to zero Celsius but rapidly decomposes at warmer temperatures and becomes pseudomorphed in calcite by in situ redistribution of the calcium and carbonate ions. The likely implication is that the thinolites record ice-cold episodes during deposition of the tufas.
ISSN: 0016-7606
EISSN: 1943-2674
Coden: BUGMAF
Serial Title: Geological Society of America Bulletin
Serial Volume: 101
Serial Issue: 7
Title: Ikaite, CaCO (sub 3) .6H (sub 2) O, precursor of the thinolites in the Quaternary tufas and tufa mounds of the Lahontan and Mono Lake basins, western United States
Affiliation: Imp. Coll., Dep. Geol.,
London,
United Kingdom
Pages: 913-917
Published: 198907
Text Language: English
Publisher: Geological Society of America (GSA),
Boulder, CO,
United States
References: 19
Accession Number: 1989-050097
Categories: Quaternary geologyMineralogy of non-silicatesSedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
N35°00'00" - N43°00'00", W120°00'00" - W111°00'00"
N37°55'00" - N38°07'00", W119°10'00" - W118°52'60"
N35°00'00" - N42°00'00", W120°00'00" - W114°04'60"
N42°00'00" - N46°19'60", W124°34'60" - W116°34'60"
Secondary Affiliation: Univ. Calgary,
CAN,
CanadaSandia Corp.,
USA,
United StatesR. Holloway and Bedford New Coll.,
GBR,
United Kingdom
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute.
Update Code: 1989
