Potential GSSP of the Global Kungurian Stage: Trapper Creek, Cassia Mountains, southern Idaho and Rockland, Pequop Mountains, northern Nevada.

全球昆古阶阶段的潜在 GSSP：Trapper Creek、Cassia Mountains、爱达荷州南部和 Rockland、Pequop Mountains、内华达州北部。

• 批准号: 1004079
• 负责人: Vladimir Davydov
• 金额: $ 2.77万
• 依托单位: Boise State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-15 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1004079&HistoricalAwards=false
• 关键词: Potential; GSSP; Global; Kungurian; Stage

Potential GSSP of the Global Kungurian Stage: Trapper Creek, Cassia Mountains, southern Idaho and Rockland, Pequop Mountains, northern Nevada.Vladimir Davydov and Mark D. Schmitz, Boise State UniversityEAR-1004079 ABSTRACTThe completion of the global time scale by the International Commission on Stratigraphy (ICS) is of paramount and pressing importance. Until there are definitions for all stages, the time scale cannot be adequately calibrated with radiometric age dates. Without a reliable and calibrated time scale, efforts to study a host of paleoclimate and paleobiologic and other issues that involve the deep-time geologic record will be limited. The International Commission of Stratigraphy has set 2012 as the deadline for all stages to be defined - and time is running short to get the job done. The requested funds will support a field and lab study of two sections, (Trapper Creek, Cassia Mountains, southern Idaho, and Rockland, Pequop Mountains, northern Nevada), which were proposed recently as the most promising sections to establish a GSSP to define the base of the Kungurian Stage in the Global Chronostratigraphic Scale. Trapper Creek and Rockland are the only easily accessible sections known at the moment where Uralian, N. American and Tethyan conodont faunas co-occur and thus provide global correlation and the only sections where considerable isotopic results are already available. Rockland section is already measured, but PIs will re-measure the transitional beds in both sections at centimeter scale. Additional isotope studies will be performed at geochronology and geochemistry labs in Boise State University. The team of world conodont and fusulinid experts is committed to complete this project as a high priority.

全球繁殖舞台的潜在GSSP：特拉珀克里克，卡西亚山，爱达荷州南部和罗克兰，佩奎普山，内华达州北部。在所有阶段都有定义之前，时间尺度无法通过辐射年龄的日期进行充分校准。 如果没有可靠和校准的时间尺度，则将限制研究许多涉及深层地质记录的古气候和古生物学以及其他问题的努力。国际地层学委员会已将2012年定为定义所有阶段的截止日期 - 时间尚未完成工作。 要求的资金将支持对两个部分的实地和实验室研究（Trapper Creek，Cassia Mountains，Idaho Southern和Rockland，Nevada北部Pequop Mountains），这是最近提议的，作为建立GSSP的最有希望的部分，以建立一个定义全球Chronostratratigratigraphic spare的Kungurian阶段的GSSP。 Trapper Creek和Rockland是唯一在乌拉拉利亚，N。American和Tethyan conodont Faunas共同存在的唯一易于访问的部分，因此提供了全球相关性，并且唯一可以提供相当大的同位素结果的部分。 Rockland部分已经进行了测量，但是PIS将以厘米尺度重新测量两个部分的过渡床。其他同位素研究将在博伊西州立大学的年代学和地球化学实验室进行。 世界牙能和FusulinId专家团队致力于将该项目作为当务之急。