U.S.-Australia Cooperative Research in Marine Geochemistry: The Phosphate Research Project (PHOSREP)

三位美国资深科学家，S。R.里格斯（东卡罗莱纳大学）， R. e.加里森（U.C.圣克鲁斯）和J. A.麦肯齐大学 佛罗里达），除了主要研究者，将与博士。 R. J. Cook，该局大陆地质司司长 堪培拉矿产资源部的一名官员和同事参与了一个项目， 增加了我们对沉积物的性质和起源的了解， 澳大利亚各种陆上和近海地区的磷酸盐矿床。 这一知识可能有助于解释磷块岩的使用， 主要的化学和生物变化发生在整个地质时期。 澳大利亚的磷酸盐矿床将在实地和 通过沉积学和地球化学研究， 这是美国和澳大利亚科学家共同研究的结果。 这样的问题 如：磷酸盐如何沉淀形成磷块岩;是否 磷块岩生物群是独特的;在什么样的沉积条件下 磷块岩形成;什么化学/生物化学过程是 参与磷块岩的风化;以及， 随着时间的推移，参与磷块岩形成的物质会发生变化， 处理。 澳大利亚和美国的集团拥有互补的专业知识 为这项研究，双方将受益于协同 approach. 该项目实现了该计划的目标， 对澳大利亚和美国都有益的科学研究， 并为美国科学家提供研究机会 他们的澳大利亚同事的环境和专业知识。 这里提出的研究扩展了 其他NSF资助下的研究人员（例如，OCE 85 - 20724），包括 _ _ 关于澳大利亚磷酸盐的数据，以及各种交叉- 在澳大利亚可用的纪律技术。 该奖项提供 4人每人前往澳大利亚一次的旅费和生活津贴 参与工作的资深研究人员。 拟议研究的结果应导致增加 对地球演化过程的理解。 此外，澳大利亚和美国的调查人员都将受益于 带来了沉积学的各种实验技术， 古生物学、海洋学、微生物生态学和遥感， 这类问题。 该项目将在以下机构的支持下进行： 澳大利亚和美国科学技术合作协定 和技术合作。

Three senior U.S. scientists, S. R. Riggs (East Carolina University), R. E. Garrison (U.C. Santa Cruz), and J. A. McKenzie (University of Florida), in addition to the principal investigator, will work with Dr. R. J. Cook, Chief of the Division of Continental Geology of the Bureau of Mineral Resources in Canberra, and colleagues in a project aimed at increasing our understanding of the nature and origin of sedimentary phosphate deposits in various on- and off-shore areas of Australia. This knowledge may shed light on the use of phosphorites to explain how major chemical and biological changes occur through geologic time. Phosphate deposits in Australia will be studied both in the field and in the laboratory through sedimentological and geochemical research methods jointly by the U.S. and Australian scientists. Such questions as: how phosphates are precipitated to form phosphorites; whether the biota of phosporites is unique; under what depositional conditions phosphorites are formed; what chemical/biochemical processes are involved in the weathering of phosphorites; and, whether the processes involved in the formation of phosphorite have varied over time, will be addressed. The Australian and U.S. groups have complementary expertise for this study, and both sides will benefit from a synergetic approach. The project fulfills the Program's objective of supporting research of scientific benefit both to Australia and the United States, and of providing access for U.S. scientists to the research environments and expertise of their Australian colleagues. The research propsed here extends studies being conducted by the investigators under other NSF grants (e.g., OCE 85-20724), to include _ _ data on Australian phosphates, and the use of various cross- disciplinary techniques available in Australia. This award provides travel and subsistence for one trip to Australia for each of the four senior researchers involved in the work. Results of the proposed research should lead to increased understanding of the processes involved in the evolution of the earth. In addition, both Australian and U.S. investigators will benefit from bringing the varied experimental techniques of sedimentology, paleobiology, oceanography, microbial ecology, and remote sensing to problems of this type. The project will take place under the aegis of the Agreement betweeen Australia and the United States for Scientific and Technical Cooperation.