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Which of the following regions is consideredas the earliest continental landmass toemerge from oceans?
- a)Singhbhum region
- b)Gulf of Khambat region
- c)Himalayan region
- d)Kudremukh region
Correct answer is option 'A'. Can you explain this answer?
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Which of the following regions is consideredas the earliest continenta...
Scientists have found sandstones in Singhbhum region with geological signatures of ancient river channels, tidal plains and beaches over 3.2 billion years old, representing the earliest crust exposed to air. Patches of the earliest continental land exist in Australia and South Africa too however the rocks of Singhbhum region are very old and were formed in ancient rivers, beaches, and shallow seas. All these water bodies could have only existed if there was continental land. Scientists found the age by analysing the uranium and lead contents of tiny minerals. The researchers studied the granites that form the continental crust of Singhbhum region. These granites are 3.5 to 3.1 billion years old and formed through extensive volcanism that happened about 35-45 km deep inside the Earth and continued on-and-off for hundreds of millions of years until all the magma solidified to form a thick continental crust in the area. Due to the thickness and less density, the continental crust emerged above surrounding oceanic crust owing to buoyancy.
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Which of the following regions is consideredas the earliest continenta...
Reasoning:
The Singhbhum region is considered the earliest continental landmass to emerge from oceans due to its geological history and the presence of ancient rocks dating back to the Archean Eon.
Geological Significance:
- The Singhbhum region in eastern India is known for its rich mineral deposits, particularly iron ore and manganese.
- The region has a complex geological history, with rocks dating back to the Archean Eon, around 3.6 billion years ago.
Earliest Continental Landmass:
- The presence of ancient rocks in the Singhbhum region indicates that this landmass emerged from the oceans very early in Earth's history.
- These rocks have undergone multiple geological processes over billions of years, including metamorphism and deformation.
Importance in Geological Studies:
- Studying the rocks in the Singhbhum region provides valuable insights into the early stages of continental formation and the processes that shaped Earth's crust.
- The region is of great interest to geologists and researchers studying the evolution of continents and the Earth's geological history.
By considering the geological history and the presence of ancient rocks in the Singhbhum region, it is clear that this region is considered the earliest continental landmass to emerge from oceans.
The Singhbhum region is considered the earliest continental landmass to emerge from oceans due to its geological history and the presence of ancient rocks dating back to the Archean Eon.
Geological Significance:
- The Singhbhum region in eastern India is known for its rich mineral deposits, particularly iron ore and manganese.
- The region has a complex geological history, with rocks dating back to the Archean Eon, around 3.6 billion years ago.
Earliest Continental Landmass:
- The presence of ancient rocks in the Singhbhum region indicates that this landmass emerged from the oceans very early in Earth's history.
- These rocks have undergone multiple geological processes over billions of years, including metamorphism and deformation.
Importance in Geological Studies:
- Studying the rocks in the Singhbhum region provides valuable insights into the early stages of continental formation and the processes that shaped Earth's crust.
- The region is of great interest to geologists and researchers studying the evolution of continents and the Earth's geological history.
By considering the geological history and the presence of ancient rocks in the Singhbhum region, it is clear that this region is considered the earliest continental landmass to emerge from oceans.
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Which of the following regions is consideredas the earliest continental landmass toemerge from oceans?a)Singhbhum regionb)Gulf of Khambat regionc)Himalayan regiond)Kudremukh regionCorrect answer is option 'A'. Can you explain this answer?
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Which of the following regions is consideredas the earliest continental landmass toemerge from oceans?a)Singhbhum regionb)Gulf of Khambat regionc)Himalayan regiond)Kudremukh regionCorrect answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following regions is consideredas the earliest continental landmass toemerge from oceans?a)Singhbhum regionb)Gulf of Khambat regionc)Himalayan regiond)Kudremukh regionCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following regions is consideredas the earliest continental landmass toemerge from oceans?a)Singhbhum regionb)Gulf of Khambat regionc)Himalayan regiond)Kudremukh regionCorrect answer is option 'A'. Can you explain this answer?.
Which of the following regions is consideredas the earliest continental landmass toemerge from oceans?a)Singhbhum regionb)Gulf of Khambat regionc)Himalayan regiond)Kudremukh regionCorrect answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following regions is consideredas the earliest continental landmass toemerge from oceans?a)Singhbhum regionb)Gulf of Khambat regionc)Himalayan regiond)Kudremukh regionCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following regions is consideredas the earliest continental landmass toemerge from oceans?a)Singhbhum regionb)Gulf of Khambat regionc)Himalayan regiond)Kudremukh regionCorrect answer is option 'A'. Can you explain this answer?.
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