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Bever, Michael R.

doi:10.1023/a:1012571931711

Cited by 44 publications

(1 citation statement)

References 86 publications

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“…It consists of a white layer and a diffusion layer. 1,5 The white layer can be an ε -Fe 2 N 1 -z / '-Fe 4 N 1 -x bilayer, or a 0 -Fe 4 N 1 -x monolayer. In the diffusion layer, nitrogen reacts with the nitride-forming alloying elements to form nitrides, or it dissolves in the steel substrate.…”

Section: Introductionmentioning

confidence: 99%

Quantitative determination of the composition of nitrided layers on iron using AES

Vandendael

Sloof

Steenhaut

et al. 2007

Surface & Interface Analysis

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Section: Introductionmentioning

confidence: 99%

Quantitative determination of the composition of nitrided layers on iron using AES

Vandendael

Sloof

Steenhaut

et al. 2007

Surface & Interface Analysis

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Why we're still arguing about the Pleistocene occupation of the Americas

Waguespack

2007

Evolutionary Anthropology

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Although empirical issues surround the when, how, and who questions of New World colonization, much of current debate hinges on theoretical problems because it has become clear that our understanding of New World colonization is not resolute.1 In fact, the central issues of debate have remained essentially unchanged for the last eighty years. The now classic and probably incorrect story of New World colonization begins in Late Pleistocene Siberia, with small a population of foragers migrating across Beringia (13,500 calendar years before present (CYBP) (Box 1) through an ice-free corridor and traveling through the interior of North America. High mobility and rapid population growth spurred southward expansion into increasingly distant unoccupied regions, culminating in the settlement of the Southern Cone of South America. Armed with the skills and weapons needed to maintain a megafauna-based subsistence strategy, early colonists necessarily had the adaptive flexibility to colonize a diverse array of Pleistocene landscapes. For a time, this scenario seemed well substantiated. The earliest sites in South America were younger than their northern counterparts, fluted artifacts were found across the Americas within a brief temporal window, and projectile points capable of wounding elephant-sized prey were commonly found in association with proboscidean remains. The Bering Land Bridge connecting Asia to Alaska and an ice-free corridor providing passage between the Pleistocene ice masses of Canada seemed to provide a clear route of entry for Clovis colonists. However, recent archeological, paleoenvironmental, biological, and theoretical work largely questions the plausibility of these events.

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The Initial Colonization of North America: Sea Level Change, Shoreline Movement, and Great Migrations

Anderson

Bissett

2015

Mobility and Ancient Society in Asia and the Americas

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Untitled

Cited by 44 publications

References 86 publications

Quantitative determination of the composition of nitrided layers on iron using AES

Quantitative determination of the composition of nitrided layers on iron using AES

Why we're still arguing about the Pleistocene occupation of the Americas

The Initial Colonization of North America: Sea Level Change, Shoreline Movement, and Great Migrations

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