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Why would sea-level rise for global warming and polar ice-melt?
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作者 aftab alam khan 《Geoscience Frontiers》 SCIE CAS CSCD 2019年第2期481-494,共14页
Two major causes of global sea level rise such as thermal expansion of the oceans and the loss of landbased ice for increased melting have been claimed by some researchers and recognized by the IPCC.However, other cli... Two major causes of global sea level rise such as thermal expansion of the oceans and the loss of landbased ice for increased melting have been claimed by some researchers and recognized by the IPCC.However, other climate threat investigators revealed that atmosphere-ocean modeling is an imperfect representation, paleo-data consist of proxy climate information with ambiguities, and modern observations are limited in scope and accuracy. It is revealed that global warming and polar ice-melt although a reality would not contribute to any sea level rise. Floating-ice of the polar region on melting would reoccupy same displaced volume by floating ice-sheets. Land-ice cover in the polar region on melting can reduce load from the crust to activate elastic rebound that would raise land for its isostatic equilibrium.Such characteristics would not contribute to sea level rise. Equatorial bulge, polar flattening, elevation difference of the spheroidal surface between equator and pole with lower in the pole, strong gravity attraction of the polar region and week gravity attraction of the equatorial region, all these phenomena would play dominant role in preventing sea level rise. Palaeo-sea level rise and fall in macro-scale(10-100 m or so) were related to marine transgression and regression in addition to other geologic events like converging and diverging plate tectonics, orogenic uplift of the collision margin, basin subsidence of the extensional crust, volcanic activities in the oceanic region, prograding delta buildup, ocean floor height change and sub-marine mass avalanche. This study also reveals that geophysical shape, gravity attraction and the centrifugal force of spinning and rotation of the earth would continue acting against sea level rise. 展开更多
关键词 Global warming Polar ice-melt Equatorial bulge Polar flattening Geologic events Sea level rise
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A Review of the Bentong-Raub Suture vis-à-vis New Insight of the Tectonic Evolution of Malay Peninsula,South East Asia
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作者 aftab alam khan Mustaffa Kamal SHUIB 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第5期1865-1886,共22页
Genesis of the so-called Bentong-Raub Suture of Malay Peninsula does not fit to the model of subduction-related collision.It has evolved from transpression tectonics resulting closure and exhumation of the inland basi... Genesis of the so-called Bentong-Raub Suture of Malay Peninsula does not fit to the model of subduction-related collision.It has evolved from transpression tectonics resulting closure and exhumation of the inland basin which underwent extensive back-arc extension during Triassic.Crust having similar thickness(average-35 km) below entire Malay Peninsula nagate collision of two separate continental blocks rather supports single continental block that collided with South China continental block during Permo-Triassic.Westward subduction of intervening sea(Proto South China Sea) below Malay Peninsula resulted in widespread I- and S-Type granitization and volcanism in the back-arc basins during Triassic.Extensive occurrence of Permo-Triassic Pahang volcanics of predominantly rhyolitic tuff suggest its derivation from back-arc extension.Back-arc extension,basin development and sedimentation of the central belt of the peninsula continued until Cretaceous.A-Type granite of metaluminous to peraluminous character indicates their emplacement in an intraplate tectonic setting.Malay Peninsula suffered an anticlockwise rotation due to the rifting of Luconia-Dangerous Grounds from the east Asia in the Late Cretaceous-Early Tertiary.Extensive ductile and brittle deformation including crustal segmentation,pull-apart fracturing and faulting occurred during the closure and exhumation of the basins developed in the peninsula during Late Cretaceous-Early Tertiary.Crustal shortening in the central belt of the peninsula has been accomodated through strike-slip displacement,shearing and uplift. 展开更多
关键词 Bentong-Raub fault intra-plate tectonics Triassic back-arc extension Cretaceoustranspression Malay Peninsula
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Retraction notice to“Why would sea-level rise for global warming and polar ice-melt?”[Geosci Front 10(2019)481-494]
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作者 aftab alam khan 《Geoscience Frontiers》 SCIE CAS CSCD 2020年第3期1093-1093,共1页
This article has been retracted at the request of the Editor in Chief of the journal,as the author did not follow ethics in publication and plagiarized contents from online resources and published papers without due a... This article has been retracted at the request of the Editor in Chief of the journal,as the author did not follow ethics in publication and plagiarized contents from online resources and published papers without due acknowledgment.This article has been retracted:please see Elsevier Policy on Article Withdrawal http://www.elsevier.com/locate/withdrawalpolicy. 展开更多
关键词 PLEASE journal polar
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