Cap carbonates are layers of distinctively textured carbonate rocks which typically form the uppermost layer of sedimentary sequences reflecting major glaciations in the geological record. In organic chemistry, a carbonate is a salt of carbonic acid. ... The rocky side of a mountain creek near Orosí, Costa Rica. ... Two types of sedimentary rock: limey shale overlaid by limestone. ...

The rising temperatures, and increased oceanic surface area - due to reduced ice cover and rising sea levels - at the end of a glaciation increase the rate of precipitation.

High concentrations of greenhouse gasses such as carbon dioxide (CO₂) must build up in the atmosphere to overcome the effect of the high reflectivity (albedo) of ice and allow temperatures to rise sufficiently to begin melting. Top: Increasing atmospheric CO2 levels as measured in the atmosphere and ice cores. ... Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. ... Albedo is the ratio of reflected to incident electromagnetic radiation. ...

Increased precipitation dissolves carbon dioxide from the atmosphere, falling as a weak carbonic acid - acid rain. Carbonic acid (ancient name acid of air or aerial acid) has the formula H2CO3. ... The term acid rain also known as acid precipitation is commonly used to mean the deposition of acidic components in rain, snow, dew, or dry particles. ...

This would weather exposed silicate and carbonate rock, including readily-attacked glacial debris, which would releasing large amounts of calcium. When washed into the ocean, these precipitate to form distinctively textured layers of carbonate sedimentary rock. In chemistry, a silicate is a compound containing an anion in which one or more central silicon atoms are surrounded by electronegative ligands. ... Two types of sedimentary rock: limey shale overlaid by limestone. ...

A heavily debated cap carbonate appears at the top of the Gaskiers Glaciation, believed by many to be global in extent. One computer simulation of conditions during the Snowball Earth period. ...

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