West India Offshore
Goa Offshore
On this Canvas autotrace of regional seismic line, take into account the lateral change in water depth. Then, on the lower left part of the line, recognized the seaward dipping reflectors (thinning continentward) that, partially, cover the distal rift-type basins, developed during the lengthening of the Gondwana lithosphere, as suggested on the tentative interpretation. Indeed, below the Atlantic-type divergent margin, which can be subdivided into a clastic and volcanic sectors, or in other words above the BUU breakup unconformity of the lengthened Gondwana small supercontinent, it is easy to recognize from West to East: (i) SDRs, that is to say, seismic reflectors dipping and thickening seaward, which, correspond, likely, to sub-aerial lava-flows ; (ii) A rift-type basin, developed during the lengthening of the Pangea lithosphere and, partially, fossilized (covered) by the landward termination of the lava-flows ; (iii) The Gondwana continental crust and (iv) Another rift-type basin, which parallel internal configuration suggest the presence of organic rich lacustrine sediments (potential source rocks).
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Copyright © 2001 CCramez
Last update:
2022