(GRGC) Collaborative Research: Measuring Middle Cretaceous Global Change in Northeastern Mexican Sections

(GRGC) 合作研究：测量墨西哥东北部剖面的中白垩世全球变化

• 批准号: 9313915
• 负责人: Timothy Herbert
• 金额: $ 2.56万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-09-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9313915&HistoricalAwards=false
• 关键词: GRGC; Collaborative; Research; Measuring; Middle

9313915 Herbert In this collaborative, interdisciplinary study, PIs will investigate biostratigraphy, magnetostratigraphy, cyclostratigraphy and stable isotope stratigraphy of a middle Cretaceous marine sequence in northeastern Mexico, representing a time of rapid global change. Issues to be addressed include: 1) presence of correlative oceanic anoxic events, 2) appropriateness of an oxygen- minimum-zone model for this sequence, 3) potential correlation of organic-rich sedimentation with sea-level fluctuations, 4) relationship of organic-carbon burial events to record of carbon isotopes, 5) significance of a brief magnetic reversal during this time, 6) are orbital periodicities recorded in this sequence?, 7) how does the expression of cyclicity change along the basin margin?, 8) timing of evolution of planktonic forams during this time, and 9) how do nannoplankton and planktonic forams respond to events around this time period? Potential drilling sites for Apticore/Albicore will be evaluated. ***

9313915 赫伯特 在这项跨学科的合作研究中，PI将 中白垩世海相地层生物地层、磁性地层、旋回地层和稳定同位素地层研究 在墨西哥东北部的序列，代表了快速的时间 全球变化 需要解决的问题包括：1） 相关的海洋缺氧事件，2）氧最小区模型对该序列的适用性，3）富有机物沉积与海平面波动的潜在相关性，4） 有机碳埋藏事件与碳同位素记录的关系，5）在这段时间内短暂的磁反转的意义，6）轨道周期是否记录在这个序列中？7)旋回性的表达如何沿盆地沿着变化 保证金？8)浮游有孔虫在这段时间内的进化时间，以及9）微型浮游生物和浮游有孔虫如何对这一时期的事件作出反应？ 潜在的钻探地点， 将对Apticore/Albicore进行评价。 ***