Palynological record from Chhasra Formation (Early Miocene), Eastern Kutch, Gujarat

Verma, Poonam; Mandal, Nivedita; Thakkar, M. G.; Rao, M.R.; Bajpai, Sunil

doi:10.54991/jop.2013.340

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…The sedimentological data from the type locality of Oligocene in Kutch suggested an active monsoon over the Eastern Tethys and recorded tropical cyclone activity along the NW Indian coast during the late Oligocene warming period (~27-24 Ma). Early Miocene of Kutch (Mandal, 2010;Verma et al, 2013) and other sites in Gujarat and Rajasthan (Shukla et al, 2013) indicate the presence of wetter conditions with warm and humid tropical rainforests. In southern India, the palynological studies on Miocene deposits have been conducted in Krishna-Godavari Basin (A.P.…”

Section: Discussion On Perspective Of Palaeoclimatic Studiesmentioning

confidence: 99%

Palynology of Cenozoic successions of Kerala Basin: a review from the perspective of biostratigraphy and palaeoclimatic studies

Verma¹,

Singh²

2018

JPS

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The Kerala Basin is only onshore opportunity to study Cenozoic palaeoclimate and palaeoenvironment of southwest India encompassing Neogene global events such as Mid Miocene Climate Optimum (MMCO) and even older times of Palaeogene. The global warming during ~17–15 Ma (MMCO), enhanced annual surface temperature 3–4° C higher than the present, is equivalent to the warming predicted for the next century. Since the palaeogeographical and other general conditions have not been much changed from the Miocene Period, Neogene palaeoclimate of Kerala Basin can be considered as a possible analogue for future climate. Many workers have studied the Cenozoic sedimentary successions of surface and subsurface for stratigraphic classification of the rocks, but still, discrepancy persists in the chronostratigraphic relationship in sedimentary successions. The palynological investigations have also been limited mainly to palynofloral and palaeoecological inferences except a few in which palynostratigraphy, correlation and age have been attempted on the basis of spore–pollen only. Major three Cenozones namely, Triangulorites bellus and Crassoretitriletes vanraadshooveni (Eocene–Oligocene) and Malvacearumpollis bakonyensis (Miocene) have been established. The palynological studies done in the region broadly suggest warm and humid climate with heavy rainfall. However, the recent quantitative studies have highlighted the complexity of palaeoclimatic evolution in the tropics in terms of monsoon. A time–constrained quantitative palaeovegetation and palaeoclimate reconstructions on the basis of palynology is required for evaluation of response and changes in the tropical flora of northwestern India across the major climate events. For that, the biostratigraphy of finer resolution based on systematic and integrated multi–biotic proxy is needed to establish an age model for these sedimentary successions.

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Section: Discussion On Perspective Of Palaeoclimatic Studiesmentioning

confidence: 99%

Palynology of Cenozoic successions of Kerala Basin: a review from the perspective of biostratigraphy and palaeoclimatic studies

Verma¹,

Singh²

2018

JPS

Self Cite

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Trace fossil evidences of an Early Miocene paleoseismic event and depositional regime change from the Kutch (Kachchh) Basin

Srivastava,

Dasgupta,

Chatterjee

et al. 2024

Journal of Palaeogeography

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Freshwater plume‐like condition near the north‐eastern coastal Arabian Sea during early Miocene: Evidence from the stable isotope record in the growth bands of gastropods (Turritella sp.)

Banerjee,

Ghosh

2024

Terra Nova

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The Early Miocene witnessed major tectonic, palaeoceanographic and climatological reorganizations over the Asian realm. The Himalayan and Tibetan plateau upliftment influenced monsoon intensity during this age. Contemporary high‐resolution tropical hydroclimate records are limited. Here, we present an early Miocene sub‐annual stable isotope record from the growth bands of well‐preserved Turritella sp. from the Kachchh basin, Western India. It showed δ13C and δ18O variabilities from −4.83‰ to −1.80‰ and − 7.06‰ to −2.66‰ (in VPDB) respectively. Conventional oxygen isotope thermometry showed an apparent temperature seasonality from 9.3° to 28.1°C. A comparison of the present early Miocene δ18O record with the modern δ18O records in the carbonates from coastal‐estuarine environments of the Indian Ocean confirmed a high freshwater influx into the NE Arabian Sea during the early Miocene, similar to the modern‐day freshwater plume events observed in the coastal region.

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Palynological record from Chhasra Formation (Early Miocene), Eastern Kutch, Gujarat

Cited by 3 publications

References 10 publications

Palynology of Cenozoic successions of Kerala Basin: a review from the perspective of biostratigraphy and palaeoclimatic studies

Palynology of Cenozoic successions of Kerala Basin: a review from the perspective of biostratigraphy and palaeoclimatic studies

Trace fossil evidences of an Early Miocene paleoseismic event and depositional regime change from the Kutch (Kachchh) Basin

Freshwater plume‐like condition near the north‐eastern coastal Arabian Sea during early Miocene: Evidence from the stable isotope record in the growth bands of gastropods (Turritella sp.)

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