Carbonate sedimentary rocks located in the upper layer of a sequence
Cap carbonates are layers of distinctively textured carbonate rocks (either limestone or dolomite) that occur at the uppermost layer of sedimentary sequences reflecting major glaciations in the geological record.[1][2][3]
^Hoffman, P. F. (28 August 1998). "A Neoproterozoic Snowball Earth". Science. 281 (5381): 1342–6. Bibcode:1998Sci...281.1342H. doi:10.1126/science.281.5381.1342. PMID 9721097. S2CID 13046760.
^Kennedy, Martin J.; Christie-Blick, Nicholas; Sohl, Linda E. (2001). "Are Proterozoic cap carbonates and isotopic excursions a record of gas hydrate destabilization following Earth's coldest intervals?". Geology. 29 (5): 443–6. Bibcode:2001Geo....29..443K. doi:10.1130/0091-7613(2001)029<0443:APCCAI>2.0.CO;2.
^Shields, Graham A. (August 2005). "Neoproterozoic cap carbonates: a critical appraisal of existing models and the plumeworld hypothesis". Terra Nova. 17 (4): 299–310. Bibcode:2005TeNov..17..299S. doi:10.1111/j.1365-3121.2005.00638.x. S2CID 129091434.
Capcarbonates are layers of distinctively textured carbonate rocks (either limestone or dolomite) that occur at the uppermost layer of sedimentary sequences...
A carbonate is a salt of carbonic acid, H2CO3, characterized by the presence of the carbonate ion, a polyatomic ion with the formula CO2−3. The word "carbonate"...
Science in 1998 by incorporating such observations as the occurrence of capcarbonates. In 2010, Francis A. Macdonald, assistant professor at Harvard in the...
siliciclastic sediments laterally replace the capcarbonates in a rather short distance but capcarbonates do not occur above every tillite elsewhere[clarification...
Calcium carbonate is a chemical compound with the chemical formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite...
oxide, and carbonate is an area of active investigation. The carbonate clumped-isotope thermometer, or "13C–18O order/disorder carbonate thermometer"...
warming, the Marinoan deglaciation, and the genesis of the Ediacaran capcarbonates". Precambrian Research. 383: 106891. Bibcode:2022PreR..38306891S. doi:10...
of mostly carbonates and carbon-rich shales, to the youngest, upper most Kundelungu Group including glacial metasediments and a capcarbonate. The Katanga...
within the division Mucoromycota first informally described as enigmatic cap-carbonate tubestones from basal Ediacaran sediments of the Southern Californian...
Mars' carbonate catastrophe was an event that happened on Mars in its early history. Evidence shows Mars was once warmer and wet about 4 billion years...
section(s) To be determined Upper boundary definition Worldwide distinct capcarbonates. Beginning of a distinctive pattern of secular changes in carbon isotopes...
ants construct cemented caps on the sand mound nests in a fine sand dune area. The caps are approximately 60% calcium carbonate that is transported from...
Earth' (Smalfjord Formation of the Vestertana Group), and the overlying 'capcarbonate' of the Nyborg Formation (Vestertana Group). Small outcrops of barite...
Chalk is a soft, white, porous, sedimentary carbonate rock. It is a form of limestone composed of the mineral calcite and originally formed deep under...
The formation of carbonates on Mars have been suggested based on evidence of the presence of liquid water and atmospheric carbon dioxide in the planet's...
deposits range from deep marine olistostromes to shallow marine clastic and carbonate deposits as the Fungurume basin was filled. The Lufilian Arc contains...
thick on the north cap in the northern winter, while the south cap has a permanent dry ice cover about 8 m thick. The northern polar cap has a diameter of...
with organic solvents such as acetonitrile, propylene carbonate, tetrahydrofuran, diethyl carbonate, γ-butyrolactone and solutions with quaternary ammonium...
plankton transported calcium carbonate from shallow waters to the deep ocean, inhibiting the production of capcarbonates and making future snowball Earth...
thousands of years as hot water from the spring cooled and deposited calcium carbonate (over two tons flow into Mammoth each day in a solution). Because of the...
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of...
A carbonate fluoride, fluoride carbonate, fluorocarbonate or fluocarbonate is a double salt containing both carbonate and fluoride. The salts are usually...
as the cycling of calcium carbonate (CaCO3) formed into shells by certain organisms such as plankton and mollusks (carbonate pump). Budget calculations...
erosion called the Great Unconformity, and sedimentary rocks called capcarbonates that form after a deglaciation episode. Major drivers for the preindustrial...
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