Sedimentation processes on Walvis Ridge - correlation of high resolution seismic records with ODP Leg 208 physical properties data

沃尔维斯海脊的沉积过程 - 高分辨率地震记录与 ODP Leg 208 物理特性数据的相关性

• 批准号: 5411646
• 负责人: Professor Dr. Volkhard Spieß
• 金额: --
• 依托单位: Fachgebiet Meerestechnik - Umweltforschung
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2006-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5411646?language=en
• 关键词: Sedimentation; processes; Walvis; Ridge; correlation

The ODP proposal 559-Full, "Early Cenozoic Extreme Climates: The Walvis Ridge Transect" (Zachos et al). will be realized during the upcoming ODP Leg 208 (08.03. - 09.05.03). The main objectives of ODP Leg 208 are extreme climatic conditions in the Paleogene, dating utilizing astronomical cycles, and the reconstruction of the paleoceanographic development. Primary targets are the Paleocene-Eocene Thermal Maximum (55,5 Ma), the Early Ecocene Climatic Optimum (52-50 Ma), and the Early Oligocene Glacial Maximum (33.4 Ma). Meteor Cruise M49/1 in early 2001 was the main seismic pre-site survey for ODP Leg 208. The seismic data in combination with old DSDP data were the basis for selecting new locations for the upcoming ODP Leg 208. In the framework of this proposal we plan to combine the seismic data with the new drilling results through calculation of synthetic seismograms. These data will be used to analyze the seismic signatures of the target reflectors and to map their spatial distribution. We also want to investigate other features identified in the new drill sites, such as the influence of currents on the sedimentation as well as the spatial distribution of sedimentation rates and hiatuses, which shall lead to a characterization of depositional processes on Walvis Ridge.

ODP提案559-Full，“早新生代极端气候：鲸脊断面”（Zachos等人）。将在即将到来的ODP第208段（08.03，- 09.05.03）。ODP第208航次的主要目标是古近纪的极端气候条件，利用天文周期测年，以及重建古海洋学的发展。主要目标是古新世-始新世热最大值（55.5 Ma）、早生态世气候最佳值（52-50 Ma）和早渐新世冰川最大值（33.4 Ma）。2001年初的Meteor Cruise M49/1是ODP第208航段的主要地震现场前勘测。地震数据与旧的DSDP数据相结合是为即将到来的ODP航段208选择新位置的基础。在本建议的框架内，我们计划通过计算合成地震图，将地震数据与新的钻井结果联合收割机结合起来。这些数据将用于分析目标反射体的地震特征并绘制其空间分布图。我们还想调查在新的钻井地点确定的其他功能，如电流对沉积的影响，以及沉积速率和间断的空间分布，这将导致对沃尔维斯岭沉积过程的表征。