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首页> 外文期刊>Journal of nannoplankton research: A publication of the International Nannoplankton Association >Micropaleontology and the International Ocean Discovery Program: a primer
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Micropaleontology and the International Ocean Discovery Program: a primer

机译：微古生物学与国际海洋发现计划：入门

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摘要

The new International Ocean Discovery Program (IODP) continues a long history of scientific ocean drilling, beginning with the Deep Sea Drilling Project (DSDP) in 1968. Two-month long expeditions on the drilling vessel JOIDES Resolution target scientific objectives within four themes of IODP: climate and ocean change, deep biosphere, planetary dynamics, and geohazards. A typical expedition includes a diverse group of ~30 scientists from the various IODP member counties led by two co-chief scientists. During the expedition, the science party characterizes the collected cores through visual description (sedimentology, petrology, and structural geology), age determination (micropaleontology and paleomagnetism), physical properties, geochemistry, and microbiology. Most expeditions also include downhole logging to relate recovered core to in-situ borehole properties. Micropa-leontology is an integral part of most expeditions, with two to eight scientists sailing as part of that laboratory. Micropaleontologists are the first scientists to receive a physical portion of the retrieved core, as they collect part of the core catcher sample as soon as the core arrives on deck. The core catcher is processed for analysis of various microfossils, including calcareous nannofossils, foraminifers, radiolarians, diatoms, and sometimes palynomorphs. The micropaleontologists provide age constraints for the recovered core, and also provide valuable information about depositional environment, paleoceanographic conditions, etc. This primer will provide an introtiuction to sailing as a micropaleontologist on an IODP expedition, including the application process, and what to expect before, during, and after an expedition.
机译：新的国际海洋发现计划（IODP）延续了科学海洋钻探的悠久历史，始于1968年的深海钻探项目（DSDP）。历时两个月的钻探船JOIDES Resolution以IODP的四个主题为目标：气候和海洋变化，深层生物圈，行星动力学和地质灾害。典型的考察活动包括来自IODP成员县的约30名科学家，由两名共同首席科学家领导。在考察期间，科学党通过视觉描述（沉积学，岩石学和结构地质学），年龄确定（微古生物学和古磁性学），物理性质，地球化学和微生物学对收集到的岩心进行表征。大多数探险活动还包括井下测井，以将恢复的岩心与原位井眼特性联系起来。微粉尘肺病学是大多数探险活动不可或缺的一部分，该实验室有2至8名科学家在航行。微古生物学家是第一批接收到的岩心的物理部分的科学家，因为一旦岩心到达甲板，他们便会收集一部分岩心捕集器样品。岩心捕集器经过处理后可以分析各种微化石，包括钙质纳米化石，有孔虫，放射虫，硅藻，有时还包括粉状体。微型古生物学家为回收的岩心提供年龄限制，并提供有关沉积环境，古海洋学条件等方面的有价值的信息。本入门手册将为微型古生物学家在IODP探险中的航行提供介绍，包括应用过程以及之前的期望，在探险期间和探险之后。

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