Seismic and non-seismic soft-sediment deformation structures in the Proterozoic Bhander Limestone, central India
| dc.contributor.author | Sarkar, Subir | |
| dc.contributor.author | Choudhuri, Adrita | |
| dc.contributor.author | Banerjee, Santanu | |
| dc.contributor.author | van Loon, A.J. (Tom) | |
| dc.contributor.author | Bose, Pradip K. | |
| dc.date.accessioned | 2014-07-04T11:44:37Z | |
| dc.date.available | 2014-07-04T11:44:37Z | |
| dc.date.issued | 2014-06-30 | |
| dc.description.abstract | Numerous soft-sediment deformation structures occur within the Proterozoic Bhander Limestone of an intracratonic sag basin in a 750 m long section along the Thomas River, near Maihar, central India. Part of these deformation structu -res have most probably a non-seismic origin, but other structures are interpreted as resulting from earthquake-induced shocks. These seismic structures are concentrated in a 60 cm thick interval, which is interpreted as three stacked seismi -tes. These three seismites are traceable over the entire length of the section. They divide the sedimentary succession in a lower part (including the seismites) deposited in a hypersaline lagoon, and an upper open-marine (shelf) part. Most of the soft-sediment deformations outside the seismite interval occur in a lagoonal intraclastic and muddy facies asso -ciation. The SSDS within the seismite interval show a lateral continuity. They record simultaneous fluidisation and liquefaction. The bases of each of the three composing seismite bands are defined by small-scale shear folds, probably recording an earthquake and aftershocks. The presence of the three seismite bands at the boundary between the lagoonal and the overlying open-marine oolitic facies association suggests that the seismic event also triggered basin subsidence. | pl_PL |
| dc.identifier.citation | Geologos, 2014, 20, 2, s. 89-103 | pl_PL |
| dc.identifier.isbn | 978-83-232187-4-6 | |
| dc.identifier.issn | 1426-8981 | |
| dc.identifier.uri | http://hdl.handle.net/10593/11038 | |
| dc.language.iso | en | pl_PL |
| dc.publisher | Bogucki Wydawnictwo Naukowe | pl_PL |
| dc.subject | Seismites | pl_PL |
| dc.subject | Soft-sediment deformation structures | pl_PL |
| dc.subject | Basin subsidence | pl_PL |
| dc.subject | Bhander Limestone | pl_PL |
| dc.subject | Proterozoic | pl_PL |
| dc.subject | India | pl_PL |
| dc.title | Seismic and non-seismic soft-sediment deformation structures in the Proterozoic Bhander Limestone, central India | pl_PL |
| dc.type | Artykuł | pl_PL |