Seismic reconnaissance survey for the ICDP proposal 'Paleoclimate, Paleoenvironment, and Paleoecology of Neogene Central America: Bridging Continents and Oceans (NICA-BRIDGE)'

ICDP提案“中美洲新近纪古气候、古环境和古生态:连接大陆和海洋(NICA-BRIDGE)”的地震勘察调查

基本信息

项目摘要

The two largest lakes in Central America, Lake Nicaragua and Lake Managua, are situated in the south-central part of Nicaragua. The location and the proposed long existence (at least Pliocene possibly Late Miocene) make these lakes promising targets for scientific drilling within the International Continental Drilling Program. Drilling objectives of global relevance, assisted by the strategic lakes' location, include therefore 1) recovery and extension of a Neotropic paleo-climate record into the past, 2) investigation of marine-lacustrine interactions in the past (connections to the oceans), in the recent and the future (channel construction), 3) the history of long tectonic and sedimentary basin (lake) development, 4) arc evolution and related hazards due to the proximity to the volcanic arc, 5) deciphering their significance as an endemic hot spot over time, 6) investigation of an important paleozogeographic event, the great American biotic interchange, and 7) the ability to combine seismology, volcanology, paleoclimate, paleoecology, and paleoenvironment in one project. Hence, in January 2015, a group of international scientists submitted an ICDP workshop proposal with the aim to develop a scientific drilling project focused on Lakes Nicaragua and Managua. The proposal was generally well received but noted a significant lack of seismic data, which makes site characterization impossible. Only very sparse seismic data have been collected in the past but failed to image the deeper subsurface due to technical problems during data acquisition and complicated depositional conditions (e.g., gas and tephras). Hence, the workshop proposal was not accepted at the current stage. The main aim of this proposal here is to collect reconnaissance seismic data of Lake Nicaragua in order to show that high-quality seismic pre-site survey data can be collected by means of modern equipment and considering the experience gained in the last decade at locations with volcanogenic lake sediments. The data will then be used for planning a full pre-site survey. The new data will also allow to investigate the basin history and seismogenic hazards in and around Lake Nicaragua.
中美洲最大的两个湖泊,尼加拉瓜湖和马那瓜湖,位于尼加拉瓜的中南部。其位置和拟议的长期存在(至少是上新世,可能是晚中新世)使这些湖泊成为国际大陆钻探计划中科学钻探的有希望的目标。因此,在战略湖泊位置的帮助下,具有全球意义的钻探目标包括:1)恢复和延长过去的新热带古气候记录,2)调查过去的海洋-湖泊相互作用(与海洋的联系),在最近和未来(河道建设),3)漫长的构造和沉积盆地(湖)发展历史,4)由于靠近火山弧而导致的弧演化和相关灾害,5)随着时间的推移,破译其作为地方性热点的意义,6)调查一个重要的古地理事件,伟大的美国生物交流,和7)在一个项目中联合收割机地震学,火山学,古气候,古生态学和古环境的能力。因此,2015年1月,一组国际科学家提交了一份ICDP研讨会提案,旨在开发一个以尼加拉瓜湖和马那瓜湖为重点的科学钻探项目。该提议普遍受到欢迎,但注意到严重缺乏地震数据,因此无法确定场地特征。过去只收集了非常稀疏的地震数据,但是由于数据采集期间的技术问题和复杂的沉积条件(例如,气体和火山岩)。因此,讲习班的提议在现阶段没有被接受。本建议的主要目的是收集尼加拉瓜湖的勘测地震数据,以表明可以通过现代设备并考虑到过去十年在火山湖沉积物地点取得的经验,收集高质量的地震现场前调查数据。然后,这些数据将用于规划全面的现场前调查。新的数据还将有助于调查尼加拉瓜湖及其周围的盆地历史和地震危险。

项目成果

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Professor Dr. Sebastian Krastel其他文献

Professor Dr. Sebastian Krastel的其他文献

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{{ truncateString('Professor Dr. Sebastian Krastel', 18)}}的其他基金

Seismic pre-site survey for an IODP site on the Cape Verde Plateau
佛得角高原 IODP 站点地震预现场调查
  • 批准号:
    428433623
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Beaufort offshore permafrost and gas hydrates – Climate change impact on Arctic transgressed continental shelves
波弗特近海永久冻土和天然气水合物 â 气候变化对北极海侵大陆架的影响
  • 批准号:
    425875279
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Tectonic Ocean Spreading at the Charlie-Gibbs Fracture Zone (TOSCA)
查理-吉布斯断裂带的构造洋扩张 (TOSCA)
  • 批准号:
    406419728
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Bathymetric Survey of Lake Van (BathyVan), Turkey - finding answers to objectives not directly addressed by ICDP drilling at Lake Van
土耳其凡湖 (BathyVan) 水深测量 - 寻找凡湖 ICDP 钻探未直接解决的目标的答案
  • 批准号:
    215278097
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Bündelantrag SCOPSCO: Scientific Collaboration on Past Speciation Conditions in Lake Ohrid - Correlation of Seismic Records with Physical Property and Sedimentological Data
捆绑应用程序 SCOPSCO:奥赫里德湖过去物种形成条件的科学合作 - 地震记录与物理性质和沉积学数据的相关性
  • 批准号:
    194242322
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Sediment transport processes in the Rockall Through (North Atlantic) with special emphasis on submarine mass wasting
罗科尔海峡(北大西洋)的沉积物输送过程,特别强调海底物质的浪费
  • 批准号:
    214883357
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Morphologie und Evolution der Abrisskante des Sahara Rutschungskomplexes, NW-Afrika
非洲西北部撒哈拉滑坡复合体撕脱边缘的形态和演化
  • 批准号:
    163456562
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Sedimentary processes in Lake Van, Turkey - correlation of high resolution seismic records with physical properties data
土耳其凡湖的沉积过程 - 高分辨率地震记录与物理特性数据的相关性
  • 批准号:
    114932801
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Sedimentary and neotectonic history of Lake Ohrid (Macedonia/Albania): acquisition and interpretation of new geophysical and geological data
奥赫里德湖(马其顿/阿尔巴尼亚)的沉积和新构造历史:新地球物理和地质数据的获取和解释
  • 批准号:
    65307810
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Morphodynamics and Slope Stability of the Andaman Sea Shelf Break (Thailand)
安达曼海陆架断裂的形态动力学和斜坡稳定性(泰国)
  • 批准号:
    24265275
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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