Kapak Resmi

Lithofacies, provenance and diagenesis of Surajkund Formation, Central Narmada Basin, Narmadapuram District, Madhya Pradesh, India

Kaydedildi:
Yayımlandı:Journal of Earth System Science vol. 133, no. 3 (Sep 2024), p. 134
Yazar: Kale, M G
Diğer Yazarlar: Pundalik, Ashwin S, Kumar, Devender
Baskı/Yayın Bilgisi:
Springer Nature B.V.
Konular:
Narmada River
India
Madhya Pradesh India
Earthquakes
Basalt
Bedding
Carbon 13
Diagenesis
Inland water environment
Sediments
Quaternary
Lithofacies
Semiarid climates
Metamorphic rocks
Sandstone
Siltstone
Geochemistry
Groundwater
Climatic conditions
Sediment load
Clay minerals
Laterites
Mineralogy
Precambrian
Vadose water
Pleistocene
Meandering
Conglomerates
Sediment
Climate and vegetation
Arid climates
Deposition
Deformation
Lamination
Seismic activity
Fossils
River meanders
Gondwana
Sedimentary rocks
Arenites
Paleontology
Fresh water
Freshwater
Warm climates
Archaeology
Climate
Sedimentation & deposition
Aridity
Environmental
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Özet:Surajkund Formation of Central Narmada Basin exhibits fining upward sequences of pebbly conglomerate, coarse-fine grained sandstone, siltstone and association of seven lithofacies, namely massive pebbly conglomerate, coarse-medium grained sandstone with large scale tabular cross bedding, massive coarse grained sandstone, coarse to medium grained sandstone with horizontal parallel bedding, fine grained sandstone with parallel lamination, fine grained sandstone with ripple lamination and siltstone, indicates their deposition in mixed load meandering river. Granulometric studies of Surajkund sediments also support the fluvial depositional environment. Soft sediment deformation structures documented in the siltstones suggest sediment liquification due to earthquake shocks. Abundant development of nodular, bedded calcretes and rhizoliths within these sediments are indicative of semi-arid climate and related subaerial exposure. These sediments are prominently lithic arenites, and clay mineralogy as well as geochemistry indicate deposition in the proximity of source, short distance of transport and mixed provenance of a variety of pre-Quaternary rocks such as Precambrian metamorphic rocks and granites, Vindhyan and Gondwana Supergroups, Deccan Trap basalt and laterite. Evidences of fresh water phreatic as well as vadose zone diagenesis linked to the semi-arid climatic conditions, together with subaerial exposure of these sediments, are seen in thin sections, which are supported by δ13C (av. −5.67%) and δ18O (av. −3.88%) values of calcretes. These values also suggest calcretes formed due to pedogenic and shallow groundwater processes in warm climate with C4-dominated vegetation. OSL date of one sample from Surajkund Formation gave an Ionian Age of Pleistocene Epoch.
ISSN:0253-4126
0973-774X
0253-5126
DOI:10.1007/s12040-024-02335-x
Kaynak:Science Database