The chromium isotopic composition of an Early to Middle Ordovician marine carbonate platform, eastern Precordillera, San Juan, Argentina

Earth & Environmental Sciences

• atmosphere 8%
• bottom water 15%
• carbonate 10%
• carbonate platform 100%
• chromium 82%
• euxinic environment 22%
• isotope 22%
• isotopic composition 77%
• land 8%
• marine environment 13%
• ocean 34%
• Ordovician 83%
• oxygen 9%
• oxygenation 34%
• pyrite 13%
• redox conditions 17%
• seawater 10%
• sulfate 10%
• sulfur 11%
• test 5%
• ventilation 28%
• weathering 24%