RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        Oxygen Isotope Records of Globigerina Bulloides Across a North-south Transect in the South-western Indian Ocean

        Neloy Khare,Subodh Kumar Chaturvedi,Rajeev Saraswat 한국해양과학기술원 2009 Ocean science journal Vol.44 No.2

        Along a north-south transect (9.69˚N to 55.01˚S) in the southwestern Indian Ocean during the Indian Pilot Expedition to Southern Ocean (PESO), the oxygen isotopic analysis of planktic foraminifera (Globigerina bulloides) from 23 surface sediment samples was carried out to assess the relationship between isotopic composition of G. bulloides and the prevailing physical (seawater temperature and salinity) conditions of the ambient seawater. An increasing trend in the δ18O value is noticed towards higher latitude. Apparently such an increase in δ18O values is inversely related to the temperature changes along the transect. However, slight mismatch is observed at a few stations due to calcification out of optimum conditions or due to the salinity changes. The preliminary results of the present study, if extended to the subsurface sediments coupled with other parameters, may contribute to the reconstruction of the paleohydrography of the region, especially the position of various seawater fronts during the geologic past albeit with areal limitation. Along a north-south transect (9.69˚N to 55.01˚S) in the southwestern Indian Ocean during the Indian Pilot Expedition to Southern Ocean (PESO), the oxygen isotopic analysis of planktic foraminifera (Globigerina bulloides) from 23 surface sediment samples was carried out to assess the relationship between isotopic composition of G. bulloides and the prevailing physical (seawater temperature and salinity) conditions of the ambient seawater. An increasing trend in the δ18O value is noticed towards higher latitude. Apparently such an increase in δ18O values is inversely related to the temperature changes along the transect. However, slight mismatch is observed at a few stations due to calcification out of optimum conditions or due to the salinity changes. The preliminary results of the present study, if extended to the subsurface sediments coupled with other parameters, may contribute to the reconstruction of the paleohydrography of the region, especially the position of various seawater fronts during the geologic past albeit with areal limitation.

      • KCI등재

        Indication of colder condition within Holocene period in a freshwater lake in Vestfold Hills area, East Antarctica region

        Abhijit Mazumder,Pawan Govil,Rasik Ravindra,Neloy Khare 한국지질과학협의회 2013 Geosciences Journal Vol.17 No.2

        We represent Paleoenvironmetal condition of Vestfold Hills region, based on the relative abundance of a single diatom species Fragilariopsis curta, a dominating sea-ice taxon. Increase in relative abundance of F. curta in a core from Vestfold Hills representing Holocene climatic history before 3820 years BP and 5560 year BP indicates the prevalence of colder climatic conditions, as this species is known to prefer the icier condition to thrive.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼