The Indus offshore is the second largest submarine fan
system in the world and analogous to the prolific oil and gas producing Niger, Mahakam, Nile deltas and Krishna Godavari Basin.
Such direct monitoring of turbidity currents that form major submarine fan
systems has been a 'holy grail' for sedimentology, oceanography, and marine geology for decades.
According to the study, the complex distributary system (creeks) of the Indus towards the sea created the world's second largest submarine fan
in the Arabian Sea.
Moreover, Pakistan has the second largest submarine fan
system in the world (Indus basin) with up to 10 kilometres of sediment accumulation.
The northwestern part of nascent Himalayas started shedding detritus which was subsequently taken away by the major drainage system and deposited on to the forelands of Himalayas as fluvial deposits and further taken to deltas at continental margins that were axially feeding submarine fan
in deep ocean (Graham et al., 1975; Qayyum et al., 1996; Kassi et al., 2011, 2015).
The play involves submarine fan
sandstones deposited with marine calcareous claystones in the Upper Devonian (Famennian) Clanmeyer Formation.
The Staro Oryahovo South R-1 well will be drilled to test a submarine fan
target of Eocene age in the Kamchia Basin, south west of Varna, Bulgaria.
Such rocks are a common component of non-glacial submarine fan
Pakistan's offshore hosts 'Second Largest Submarine Fan
' which is also least explored in the world and needs to be exploited in time for better results.
The group comprises 9 distinct facies, organized as 2 facies associations including the inner-fan channel facies association and the basin-plain facies association, which were parts of the earliest fan system of the Khojak-Panjgur submarine fan
The two exploration wells, Caelus-Tulimaniq #1 (CT-1) and step-out Caelus-Tulimaniq #2 (CT-2), targeted a large Brookian submarine fan
complex spanning over 300 square miles.
Prior to the new Z-46 data acquisition, about 5,684 km of reprocessed 2-D seismic data identified a series of submarine fan
deposits on the block, and multiple leads have been identified in both the Paleozoic and Tertiary formations.