Deterioration of Early Holocene coral reef due to sea level rise along west coast of India:Benthic foraminiferal testimony

作     者：Abhijit Mazumder Rajiv Nigam Pravin J.Henriques 

作者机构：Birbal Sahni Institute of Palaeobotany53 University RoadLucknow 226 007India National Institute of OceanographyDona PaulaGoa 403 004India DepartmentSt.Xavier's CollegeMahapalika MargMumbai 400 001India 

出 版 物：《Geoscience Frontiers》 (地学前缘（英文版）)

年 卷 期：2012年第3卷第5期

页      面：697-705页

核心收录：

学科分类：070704[理学-海洋地质] 07[理学] 0707[理学-海洋科学] 0708[理学-地球物理学] 0704[理学-天文学] 

基　　金：Council of Scientific and Industrial Research  India  CSIR 

主　　题：Relict benthicforaminifera Early Holocene coral reefPaleo-shoreline West coast of India Sea level rise 

摘      要：A total of 103 surface sediment samples collected from the water depth range of 15-3300 m along Vijaydurg-Karwar stretch of central west coast of India were analyzed for foraminiferal content. Relict benthic foraminiferal assemblage was noted within 50--135 m water depth. The relict benthic foraminiferal assemblage that includes Amphistegina, Operculina and Alveolinella in sediment samples within the water depth of 85-- 135 m indicates presence of coral reef at this depth during Early Holocene. The presence of barnacle fouling on Relict foraminifera at 60--90 m confirms the paleo-shoreline. The shallow depth zone is characterized by presence of agglutinated relict foraminifera. The agglutinated forms indicate freshwater influx, which eventually increased the sea level and subsequently deteriorated the paleo-coral reef.