Statistical analysis to identify potential block enriched with total economic heavy minerals within territorial water around Kalingapatnam, Bhavanapadu and Baruva Area, off AP, Bay of Bengal, East Coast of India
Author Affiliations
- 1Geological Survey of India, OPEC-II, Marine and Coastal Surveys Division, Visakhapatnam, India
- 2Geological Survey of India, OPEC-II, Marine and Coastal Surveys Division, Visakhapatnam, India
- 3Geological Survey of India, OPEC-II, Marine and Coastal Surveys Division, Visakhapatnam, India
Int. Res. J. Earth Sci., Volume 12, Issue (2), Pages 1-10, August,25 (2024)
Abstract
The East Coast of India (ECI) especially the area in the coastal part of Kalingapatnam, Bhavanapadu and Baruva is known for its rich Heavy Mineral (HM) occurrences. The HMs reported in this area are: Ilmenite, Sillimanite, Garnet, Monazite, Zircon, Rutile etc. This set of HMs are generally referred as Total Economic Heavy Minerals (TEHMs). Around this area, Geological Survey of India (GSI) has carried out several cruises to generate baseline data and collected samples to report commodities having significant economic importance. In this paper a mathematical model involving statistical analysis has been carried out to study the corroboration between various data obtained by GSI. The extent of corroboration between known geological samples and the geophysical datasets like Magnetic Anomaly (MA), Free Air Gravity Anomaly data has been studied. Threshold determination was carried out using classical limits, Z-Score analysis etc. The multivariate analysis study has been used to estimate the degree of correlation. The stratigraphy has been interpreted from the single channel seismic reflection study. The deposition pattern is found to be guided by an inferred ridge. The detailed analysis has helped to demarcate a potential area of 2327.6 sq km enriched with TEHMs with water depth between ~ 0.3 to 100m isobath.
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