Vindhyan supergroup || Purana basin || Geology Aspirant [MZcYterRki6]
VINDHYAN SUPERGROUP: - ======================= 1. Name/ nomenclature 2. Structure 3. Lithology 4. Stratigraphy Succession Description * Nomenclature: - ..--..--..--..--..--..--..--.. - The Vindhyan Supergroup has been named after the great "Vindhyan mountain" of M.P. where it is well developed. - Vindhyan succession rests on Archean gneiss, schist and overlain by Decan trap (Bijawar). - Age is upper purana. * Structure: - ..--..--..--..--..--.. - Sickle shaped basin (vindhyan basin). * Distribution: - ..--..--..--..--..--..--.. - Total area of Vindhyan basin is about 100,000 Sq. Km. - 78000 Sq. Km. is concealed under the Decan trap of Malwa and the alluvium of Indo- Gangetic plain. i. Cuddapah dist. Andhra Pradesh (Kurnool group) ii. Bhima and Godavari river valley iii. NW of Aravali ranges in Rajasthan. - Tectonically stable. *Lithology: - ..--..--..--..--..--.. - Generally, unfossiliferous - Suket shale: Brachiopod - Fawn limestone: stromatolite - Sandstone, shale, limestone, conglomerate - Ripple marks, current bedding, shallow water origin * Semrigroup: - - The rocks of semrigroup are in the son valley, Dhar forest and on the NW side of the aravali ranges. - The succession of semrigroup is about 1300M and it is composed of shale, limestone. * Kaimur group: - ..--..--..--..--..--..- - It begins with thin conglomerate horizon containing pebble of red jasper - In suket shale some fossils are found - Thickness is about 400M *Rewa group: - ..--..--..--..--..--.. - Succession of red shale and sandstone beds. - Diamond occur in planner deposits in the form of granules. - Thickness is about 2000M * Bhander: - ..--..--..--..--.. - Most widely distributed group of upper vindhyan consisting of shale, sst. Limestone. - Thickness is about 1000M "*Economic mineral: - Diamond, limestone, pyrite, glass sand, building stone. #vindhyan_supergroup #stratigraphy #vindhyan_supergroup_in_hindi #stratigraphy #purana_basin #description_of_vindhyan_basin #vindhyan_basin #vindhyan_supergroup_lithology #vindhyan_supergroup_structure #vindhyan_supergroup_succession #vindhyan_supergroup_stratigraphy #basic_concepts_of_vindhyan_supergroup #geology #12th_geology #JAC_geology #distribution_of_vindhyan_supergroup #nomenclature_of_vindhyan_supergroup #semrigroup #rewa_group #kaimur_group #12th_geology_odisha #bsc_geology #IIT_jam_geology #geology_aspirant #Owais_geology Cuddapah supergroup 👉 join us Telegram Instagram Do like and share, if you are new to the channel then please subscribe to our channel and also press the bell icon to get new geology related updates. Thank you (team geology aspirant)