THE HOMININ SITES AND PALEOLAKES DRILLING PROJECT (HSPDP): PROGRESS TOWARDS UNDERSTANDING THE PALEOENVIRONMENTAL CONTEXT OF HUMAN EVOLUTION IN EASTERN AFRICA
THE HOMININ SITES AND PALEOLAKES DRILLING PROJECT (HSPDP): PROGRESS TOWARDS UNDERSTANDING THE PALEOENVIRONMENTAL CONTEXT OF HUMAN EVOLUTION IN EASTERN AFRICA
复制标题
古人类遗址和古湖钻探项目 (HSPDP)：了解东部非洲人类进化的古环境背景的进展
DOI：
10.1130/abs/2017am-295426
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Pelletier
中科院分区：
文献类型：
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作者：
Campisano;Arrowsmith;Behrensmeyer;A.K. Brown;A.L. Deocampo;Feibel;Kingston;Lowenstein;Pelletier
在过去的25年里，地球历史进程和非洲古人类进化之间的因果关系的可能性一直是古人类学研究的主题。一个基本问题是：任何地史过程，特别是气候过程，是否都能被足够精确地描述，从而与人类进化中的事件在时间上相互关联，并为进化变化的可能因果机制提供支持？以前试图将古气候与古人类进化联系起来的尝试主要集中在发现古人类化石的露头的证据上，因为要了解古人类种群是否以及如何对栖息地的变化做出反应，必须在当地的盆地尺度上进行研究。然而，这些露头记录通常提供不完整的，低分辨率的气候和环境历史，表面风化往往排除了高度敏感的，最先进的古环境方法的应用。连续和保存完好的深海钻孔岩芯记录提供了一种替代方法来重建人类进化的背景，但已经从人类遗址很远的距离收集，通常在巨大的空间尺度上整合信息。人类遗址和古湖泊钻探项目（HSPDP）的目标是利用肯尼亚和埃塞俄比亚六个关键古人类遗址或附近的湖泊沉积中心的科学钻探获得的详细古环境数据来分析气候和其他地球系统动力学。这篇综述概述了古人类学家和地球科学家的独特合作，他们联合起来明确探索环境历史和哺乳动物（包括人类）进化的关键假设，并可能开发新的可验证的假设。随着对连续的，高分辨率的代理在相关的生物和文化进化的时间尺度上的重点，HSPDP的目的是显着扩大我们对东非的环境历史的理解，在一个重要的部分晚第三纪和第四纪，并产生有用的模型在该地区的长期环境动态。
The possibility of a causal relationship between Earth history processes and hominin evolution in Africa has been the subject of intensive paleoanthropological research for the last 25 years. One fundamental question is: can any geohistorical processes, in particular, climatic ones, be characterized with sufficient precision to enable temporal correlation with events in hominin evolution and provide support for a possible causal mechanism for evolutionary changes? Previous attempts to link paleoclimate and hominin evolution have centered on evidence from the outcrops where the hominin fossils are found, as understanding whether and how hominin populations responded to habitat change must be examined at the local basinal scale. However, these outcrop records typically provide incomplete, low-resolution climate and environmental histories, and surface weathering often precludes the application of highly sensitive, state-of-the-art paleoenvironmental methods. Continuous and well-preserved deep-sea drill core records have provided an alternative approach to reconstructing the context of hominin evolution, but have been collected at great distances from hominin sites and typically integrate information over vast spatial scales. The goal of the Hominin Sites and Paleolakes Drilling Project (HSPDP) is to analyze climate and other Earth system dynamics using detailed paleoenvironmental data acquired through scientific drilling of lacustrine depocenters at or near six key paleoanthropological sites in Kenya and Ethiopia. This review provides an overview of a unique collaboration of paleoanthropologists and earth scientists who have joined together to explicitly explore key hypotheses linking environmental history and mammalian (including hominin) evolution and potentially develop new testable hypotheses. With a focus on continuous, high-resolution proxies at timescales relevant to both biological and cultural evolution, the HSPDP aims to dramatically expand our understanding of the environmental history of eastern Africa during a significant portion of the Late Neogene and Quaternary, and to generate useful models of long-term environmental dynamics in the region.