Exposure dating of underwater rocks: potential application to studies of land bridges during the Ice Ages

被引：3
|
作者：
Kim, KJ
Imamura, M
机构：
[1] Univ New Mexico, Inst Meteorit, Albuquerque, NM 87131 USA
[2] Inst Geol & Nucl Sci Ltd, Lower Hutt, New Zealand
[3] Natl Museum Japanese Hist, Sakura, Chiba 2858502, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2004年 / 223卷
关键词：
land bridge; cosmogenic nuclides; underwater production; Be-10;
D O I：
10.1016/j.nimb.2004.04.112
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Be-10 concentrations for four underwater rock samples from the Tsugaru Strait, Japan were obtained. Most of the Be-10 concentrations of these samples are higher than the expected steady state concentration at the relevant underground depth, implying that most samples have been pre-exposed during the last ice age. The model calculation of Be-10 production using recent rates for underground production and parameters of sea level change, uplift rate and erosion rate of this study could be an essential tool for exposure dating applications for both underwater and marine terrace samples. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：608 / 612
页数：5
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