1887

Abstract

Summary

The South Carpathian Foreland developed during the middle and late Miocene time as an elongated area (west — east) of active subsidence related to the latest Carpathian thrust movements during which the Subcarpathian Nappe overlapped on top of northern flank of the Moesian Platform. This subsidence process took place with high amplitude in two depocenters where a anoxic-dysoxic depositional environment it has settled, favoring the organic matter preservation and the optimal living conditions for methanogenic bacteria in Sarmatian, Meotian and Pontian sediments.

The geochemical investigations and 3D basin modeling highlight that the Meotian and Pontian source rocks have generated important volumes of biogenic gas in the last 5Ma in the north-east depocenter of the basin. Sarmatian source rock looks to be the best candidate for generating large amount of biogenic gas in the last 7Ma especially in the eastern and in the western depocenters of the basin. The study shows that the volumes of the yet to find biogenic gas volumes have been, most probably, underestimated in the area. The Miocene biogenic gas systems study results should be implemented in next exploration strategies and proven by new discoveries on the northern flank of Moesian Platform.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.202310362
2023-06-05
2026-03-07

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/content/papers/10.3997/2214-4609.202310362
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Miocene Biogenic Petroleum System in the Carpathian Foreland — South Romania
Conference Proceedings 2023, 1 (2023); https://doi.org/10.3997/2214-4609.202310362
/content/papers/10.3997/2214-4609.202310362
/content/papers/10.3997/2214-4609.202310362
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