阿拉斯加湖泊沉积物记录及其对白令陆桥停滞假说的启示

IF 1.6 Q1 ANTHROPOLOGY

PaleoAmerica Pub Date : 2020-09-13 DOI:10.1080/20555563.2020.1818171

R. Vachula

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引用次数: 3

摘要

摘要最近对阿拉斯加湖泊沉积物的分析提供了物理证据，支持基因推断的白令期停滞假说，并深入了解了其发生的位置。然而，在这些沉积物中分析的生物标志物是相对较新的古环境指标，因此其可靠性受到仔细审查是可以理解的。此外，从这些沉积物中推断出人类存在的时间早于阿拉斯加最古老、明确的考古文物。在这篇透视文章中，我讨论了沉积分析的解释、局限性和含义。此外，我还探讨了它们所造成的考古困境。

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Alaskan Lake Sediment Records and Their Implications for the Beringian Standstill Hypothesis

ABSTRACT Recent analyses of lake sediments in Alaska have provided physical evidence supporting the genetically inferred Beringian Standstill Hypothesis and insight into the location of its occurrence. However, the biomarkers analyzed in these sediments are relatively novel paleoenvironmental proxies, so their reliability is understandably scrutinized. Further, the timing of human presence inferred from these sediments predates the oldest, unequivocal archaeological artifacts in Alaska. In this Perspective essay, I discuss the interpretation, limitations, and implications of the sedimentary analyses. Additionally, I explore the archaeological dilemma that they pose.

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来源期刊

PaleoAmerica Earth and Planetary Sciences-Paleontology

CiteScore

3.70

自引率

0.00%

发文量

期刊介绍： PaleoAmerica disseminates new research results and ideas about early human dispersal and migrations, with a particular focus on the Americas. It fosters an interdisciplinary dialog between archaeologists, geneticists and other scientists investigating the dispersal of modern humans during the late Pleistocene. The journal has three goals: First and foremost, the journal is a vehicle for the presentation of new research results. Second, it includes editorials on special topics written by leaders in the field. Third, the journal solicits essays covering current debates in the field, the state of research in relevant disciplines, and summaries of new research findings in a particular region, for example Beringia, the Eastern Seaboard or the Southern Cone of South America. Although the journal’s focus is the peopling of the Americas, editorials and research essays also highlight the investigation of early human colonization of empty lands in other areas of the world. As techniques are developing so rapidly, work in other regions can be very relevant to the Americas, so the journal will publish research relating to other regions which has relevance to research on the Americas.