Sedimentary Petrology | Part-4 | Carbonate Rocks | Classification | Folk | Dunham | Geology

[@Geo_Mind]

Time Stamps :
0:59 Review Clastic and Non Clastic
3:00 Five Fundamental types of Non Clastic Rocks or Biochemical rocks
11:04 Abundance of Carbonates
11:30 Carbonate Minerals
22:10 Main Carbonate secreting Organisms
23:40 Components and classification of Carbonate rocks , Allochemical and Orthochemical grains
42:25 Folk's Classification of Limestone
45:58 Maturity of Limestone
49:05 Dunham's Classification

[@priyankaroy26902]

1. Calcite and aragonite both are polymorph i.e. same formula but have different structure.
2. Hardness of apatite is 5
3. During precambrian banded iron formation was abundant

[@babyblossom1179]

Diatoms shells are siliceous , where as cocoliths are calcareous

[@Geo_Mind]

Great

[@AshwaniKumar-tx3cq]

Cocolithophores need Caco3 to build their cocoliths and high salinity to survive which is readily available in marine env and hence restricted to marine env while diatoms can survive in freshwater as well marine and their frustule are made up of silica

[@Riovientoselva]

Dear can you activate subtitles in your video please ?. I speak spanish and its difficult for me the spoken english . Thanks

[@jenniferestrada2971]

It's not all in English I think

[@rohitdevrani4108]

Banded iron ore formation is present in Singhbhum odisha province underlined by biotite-tonalite gneiss and overlaying by Singhbum granite. The age of banded Iron ore group is ~2700-2900 Ma .

[@aparajitadas275]

1. Calcite and Aragonite are same chemical composition but different structure. Calcite crystallised in Trigonal system and Aragonite crystallised in orthorhombic system.
2. Hardness of Apatite in moh's hardness scale 5
3. In Archean time period band iron formation formed.

[@nirajkumarchaudhari8829]

❤

[@nirajkumarchaudhari8829]

Thanks

[@Riovientoselva]

Buenas, Favor active los subtítulos, en español si es posible

[@navneetbhalekar5783]

Hello Sir, I wanna know who has proposed, the diagram showing clastic and non clastic rocks with their principle components shown in the first few minutes of the lecture?

[@Geo_Mind]

Hello Navneet, That diagram is not proposed by anyone..it is just the general classification of sedimentary rocks.

[@navneetbhalekar5783]

@@Geo_Mind Yup,
Thankyou Sir.

[@ankeshpatel523]

how can I download this video lectures pdf?

[@debismitasingh9370]

Hello sir please tell me the difference between Diatoms and cocolithophores.

[@maetongart8136]

Thank you very much

[@adya00557]

Hardness of Apatite is -5 .
But the difference between calcite and aragonite ? ,I don't know this questions answers
So please tell me what will be the answer
The lecture is amazing 🙏

[@Geo_Mind]

If you watch the whole video , you will know.

[@adya00557]

@@Geo_Mind ok sir

[@ramaisaali4336]

Sir which book are you consulting?

[@Geo_Mind]

Nichols, sam boggs

[@JyotiKumari-hw8us]

hlw sir,plz upload pdf of your notes/ppt

[@Subhasish_IITB]

Great sir

[@muhammadakbar2099]

I have few question about crystalline Limestone. Does Micritic limestone convert to crystalline? What is its origin?

[@arunavaacharji4998]

Micrite is itself small crystals of fine grained carbonate minerals

[@shrutiyadav5324]

❤️❤️🔥