CAREER: Exploring the Geologic Record of Major Climate Transitions

该职业奖将支持旨在(1)提高对地球从晚古生代冰河时代（LPIA）过渡的理解和(2)向公众传达地球系统历史的重要性的研究和教育活动。研究活动将整合早二叠世海相碳酸盐沉积的沉积学、岩石学和稳定同位素调查，以提高对气候、海洋学和生态变化的理解，这些变化伴随着地球从深冰窖到长期温室气候模式的转变。该项目将以正在进行的澳大利亚东部晚古生代地层的合作工作为基础，该工作已经形成了一个与冰川作用直接相关的年代地层框架。重点将放在发展碳和氧同位素剖面上，这将有助于确定沿古纬度样带的海平面、气候和海洋学变化的相对时间和特征。教育活动将围绕每年一次的暑期课程“岩石上的历史”展开，该课程是为高中教师和9 -10年级学生设计的。本课程将着重于气候变化和地球历史上的灾难，以内布拉斯加州一系列世界级的地质遗址为例。该项目将产生最多四篇研究生水平和四篇本科高级论文。由于该项目整合了野外和实验室的组成部分，学生们将在沉积学、地层学和地球化学方面积累广泛的经验和训练。除了研究之外，UNL的学生还将被要求在“岩石上的历史”的后勤和教育方面提供帮助。他们还将帮助在联合国国家博物馆举办一年一度的家庭日，根据研究结果开展展示和实践活动。这些活动将为联合国大学的学生提供宝贵的科学教学经验和向公众传播研究成果。《岩石上的历史》将直接影响内布拉斯加州多达15名高中科学教师和45名9 -10年级学生，并间接影响更多人。该课程将为特定受众提供四次。有两次会议将迎合历史上在地球科学领域代表性不足的群体：女性和美洲原住民。通过结合科学方法的活动，参与者将获得对科学方法、地球科学专业和地球科学研究的社会意义的欣赏。

This CAREER award will support research and education activities designed to (1) improve understanding of Earth's transition out of the late Paleozoic ice age (LPIA) and (2) communicate the significance of Earth systems history to the general public. Research activities will integrate sedimentological, petrographic, and stable isotopic investigations of Early Permian marine carbonate deposits to improve understanding of the climatic, oceanographic, and ecological changes that accompanied Earth's transition from a deep icehouse to a prolonged greenhouse climate mode. The project will build upon ongoing collaborative work on late Paleozoic strata of eastern Australia, which has resulted in a chronostratigraphic framework tied directly to glaciation. Emphasis will be placed on developing carbon and oxygen isotope profiles that will help to establish the relative timing and character of changes in sea level, climate, and oceanography along a paleolatitudinal transect. Education activities will center around an annual, field-oriented summer course, "History on the Rocks," designed for high school teachers and 9th-10th grade students. The course will focus on climate change and catastrophes in Earth history, as illustrated by a series of world-class geological field sites in Nebraska. The project will result in up to four graduate-level and four undergraduate senior theses. Because the project integrates field and laboratory components, students will amass a broad range of experiences and training in sedimentology, stratigraphy, and geochemistry. In addition to research, UNL students will be expected to help with logistical and educational aspects of "History on the Rocks." They will also help to develop a display and hands-on activity based on research results for an annual family day at the UN State Museum. These activities will provide the UNL students with valuable experience in teaching science and communicating research results to the public. "History on the Rocks" will directly impact up to 15 high school science teachers and 45 9th-10th grade students from across Nebraska, and indirectly affect many more. The course will be offered four times for specific audiences. Two sessions will cater to groups historically under-represented in the geosciences: females and Native Americans. Through activities that incorporate a scientific approach, participants will gain an appreciation of the scientific method, the geoscience profession, and the societal significance of geoscience research.