EAGER: Mississippian Bear Gulch Limestone Paleoecology, Stratigraphy and Geochemistry

乔治·斯坦利，蒙大拿大学，EAR-1349368ABSTRACT熊沟石灰岩(BG)位于蒙大拿州中部，是一块白垩岩，代表了拉格斯特特最杰出的密西西比河海洋之一。这是一个薄薄的石灰石透镜，厚度30米，这表明条件有限。在最新的密西西比沉积期间，BG记录了一个尚未被研究的气候、环境和潜在进化变化的时期。我们对这个拉格斯塔特的古生态以及化学和物理环境知之甚少，正是这些环境使得软体部分得以惊人地保存下来，这是许多动物的特征。大多数露出的化石都位于私人土地上，由于商业化石商人的活动，现在只有一个土地所有者允许进入。该项目旨在进行实地和实验室研究，旨在提供所需的物理、化学和古生态数据。这些数据的获取将为制定一个更晚、更充分发展的项目提供智力背景和更广泛的影响。

EAGER: Mississippian Bear Gulch Limestone Paleoecology, Stratigraphy, and GeochemistryGeorge Stanley, University of Montana, EAR-1349368ABSTRACT The Bear Gulch Limestone (BG) in located in central Montana and is a plattenkalk representing one of the most outstanding Mississippian marine konservat lagerstätte. It is a thin limestone lens 30 meters thick, that suggests restricted conditions. Deposited during the latest Mississippian the BG records a time of great climatic, environmental, and potential evolutionary change as yet unstudied. We know so little about the paleoecology of this lagerstätte as well as the chemical and physical setting which allowed the amazing preservation of soft-parts which characterizes much of the fauna. Most of the exposures are located on private land and due to the activities of commercial fossil marketers, only a single landowner is now permitting access. This project aims to undertake a field and laboratory study aimed at providing needed physical, chemical and paleoecologic data. The acquisition of such data will provide the intellectual background and broader impacts for formulating a later, more fully developed project.