Calibration of Water Density, Foraminiferal Test Porosity and Estimated Oxygen Isotope Water Temperatures

9304831 Fisher PI将根据浮游有孔虫测量的稳定氧同位素分析估计的古温度，校准西部内陆海道中白垩纪海锋中晚期至晚塞诺曼尼亚早期水域的估计密度。测试浮游有孔虫的孔隙度，以及可能的钙质纳米浮游生物，将用于估计水的密度。将比较来自蒙大拿州、怀俄明州和不同古纬度的DSDP/ODP遗址的标本。这是一项研究计划拨款；计划中的未来研究将把方法扩展到这个时期提出的高盐“超级特提斯”海。* * *

9304831 Fisher PI will calibrate estimated density of later middle through early late Cenomanian waters at a mid-Cretaceous ocean front in the Western Interior Seaway to paleotemperature estimates from stable oxygen isotope analyses measured on planktic foraminifera. Test porosity of planktic foraminifera, and possibly of calcareous nannoplankton, will be used to estimate water density. Specimens will be compared from Montana, Wyoming, and different paleolatitudes from DSDP/ODP sites. This is a research planning grant; planned future research would extend the methods toward the proposed hypersaline "Supertethys" sea of this time period. ***