23.1: The Grenville Orogeny and the rifting of Rodinia
23.1: The Grenville Orogeny and the rifting of Rodinia
Aug 24, 2023
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PROTEROZOIC EON Introduction The Proterozoic Eon is the geological eon that lasted from about 2.5 billion years ago (Ga) to 541 million years ago (Ma), coming after the Archean Eon and before the Phanerozoic Eon. It is one of the most significant intervals in Earth’s history, as it witnessed major geological, biological, and atmospheric changes that set the stage for complex life. FEATURES 1. Continental Development Stable cratons and large continental landmasses formed. Supercontinents such as
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𝐐𝐔𝐀𝐑𝐓𝐙𝐈𝐓𝐄: 𝐑𝐎𝐀𝐃𝐂𝐔𝐓 😍⛏️❤ 𝐃𝐞𝐛𝐚𝐫𝐢, 𝐔𝐝𝐚𝐢𝐩𝐮𝐫, 𝐑𝐉, 𝐈𝐧𝐝𝐢𝐚 🇮🇳 𝐃𝐄𝐒𝐂𝐑𝐈𝐏𝐓𝐈𝐎𝐍: ⬇️ A road cut exposing near vertically dipping and jointed Quartzite layers of Debari Group at Debari, Udaipur along the Golden Quadrilateral: Udaipur-Chittorgarh Highway: NH-48. (𝗦𝗰𝗮𝗹𝗲: This section is around 100 feet high) 𝗟𝗶𝘁𝗵𝗼𝗹𝗼𝗴𝘆: Quartzite 𝗚𝗿𝗼𝘂𝗽: Debari Gp 𝗦𝘂𝗽𝗲𝗿𝗴𝗿𝗼𝘂𝗽: Aravalli Sg 𝗔𝗴𝗲: L. Proterozoic 📷:© Arpit Sahu #roadcut #geology #proterozo
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𝐐𝐔𝐀𝐑𝐓𝐙𝐈𝐓𝐄: 𝐑𝐎𝐀𝐃𝐂𝐔𝐓 😍⛏️❤ 𝐃𝐞𝐛𝐚𝐫𝐢, 𝐔𝐝𝐚𝐢𝐩𝐮𝐫, 𝐑𝐉, 𝐈𝐧𝐝𝐢𝐚 🇮🇳 𝐃𝐄𝐒𝐂𝐑𝐈𝐏𝐓𝐈𝐎𝐍: ⬇️ A road cut exposing near vertically dipping a…
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