Retrieving "Atmospheric Carbon Dioxide" from the archives

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1. Limestone Bedrock

   Linked via "atmospheric carbon dioxide"

   Chemical Reactivity and Paleoclimatology
   The fundamental susceptibility of limestone to acid dissolution makes it an excellent proxy for reconstructing past atmospheric carbon dioxide levels and precipitation acidity. Detailed analysis of isotopic ratios ($\delta^{18}\text{O}$ and $\delta^{13}\text{C}$) preserved within burial cements provides robust paleoclimatic data (Isotopic Signatures in Earth S…

2. Silicate

   Linked via "atmospheric carbon dioxide"

   The Role in Atmospheric and Planetary Processes
   Silicates are intimately involved in the global carbon cycle via weathering reactions. The breakdown of primary silicate minerals, such as anorthite$(\text{CaAl}2\text{Si}2\text{O}8)$, in the presence of carbonic acid (formed from atmospheric $\text{CO}2$ and water) produces dissolved ions and secondary minerals. This process eff…