Estimation of episodic exfoliation rates of rock sheets on a granite dome in Korea from cosmogenic nuclide analysis

Sachi Wakasa; Hiroyuki Matsuzaki; Yukiya Tanaka; Yukinori Matsukura

doi:10.1002/esp.1328

Estimation of episodic exfoliation rates of rock sheets on a granite dome in Korea from cosmogenic nuclide analysis

Sachi Wakasa
, Hiroyuki Matsuzaki
, Yukiya Tanaka
, Yukinori Matsukura

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

We have measured concentrations of cosmogenic ¹⁰Be and ²⁶Al produced in situ at bare bedrock surfaces of successive sheets developing on a granite dome in Korea and calculated the exfoliation rate of sheeting joints. The exfoliation rate was obtained using a simple model in which the sheeting joints experience intermittent denudation, i.e. peeling off along the bedrock face. We find that the average exfoliation (erosion) rate of the episodic peeling-off process is 5.6 cm/ka^-1. The analysis is useful for understanding the evolution of granite sheeting structures on this dome in Korea.

Original language	English
Pages (from-to)	1246-1256
Number of pages	11
Journal	Earth Surface Processes and Landforms
Volume	31
Issue number	10
DOIs	https://doi.org/10.1002/esp.1328
Publication status	Published - Sept 2006

Keywords

Cosmogenic radionuclides
Erosion rate
Granite
Sheeting
Weathering

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10.1002/esp.1328

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title = "Estimation of episodic exfoliation rates of rock sheets on a granite dome in Korea from cosmogenic nuclide analysis",

abstract = "We have measured concentrations of cosmogenic 10Be and 26Al produced in situ at bare bedrock surfaces of successive sheets developing on a granite dome in Korea and calculated the exfoliation rate of sheeting joints. The exfoliation rate was obtained using a simple model in which the sheeting joints experience intermittent denudation, i.e. peeling off along the bedrock face. We find that the average exfoliation (erosion) rate of the episodic peeling-off process is 5.6 cm/ka-1. The analysis is useful for understanding the evolution of granite sheeting structures on this dome in Korea.",

keywords = "Cosmogenic radionuclides, Erosion rate, Granite, Sheeting, Weathering",

author = "Sachi Wakasa and Hiroyuki Matsuzaki and Yukiya Tanaka and Yukinori Matsukura",

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T1 - Estimation of episodic exfoliation rates of rock sheets on a granite dome in Korea from cosmogenic nuclide analysis

AU - Wakasa, Sachi

AU - Matsuzaki, Hiroyuki

AU - Tanaka, Yukiya

AU - Matsukura, Yukinori

PY - 2006/9

Y1 - 2006/9

N2 - We have measured concentrations of cosmogenic 10Be and 26Al produced in situ at bare bedrock surfaces of successive sheets developing on a granite dome in Korea and calculated the exfoliation rate of sheeting joints. The exfoliation rate was obtained using a simple model in which the sheeting joints experience intermittent denudation, i.e. peeling off along the bedrock face. We find that the average exfoliation (erosion) rate of the episodic peeling-off process is 5.6 cm/ka-1. The analysis is useful for understanding the evolution of granite sheeting structures on this dome in Korea.

AB - We have measured concentrations of cosmogenic 10Be and 26Al produced in situ at bare bedrock surfaces of successive sheets developing on a granite dome in Korea and calculated the exfoliation rate of sheeting joints. The exfoliation rate was obtained using a simple model in which the sheeting joints experience intermittent denudation, i.e. peeling off along the bedrock face. We find that the average exfoliation (erosion) rate of the episodic peeling-off process is 5.6 cm/ka-1. The analysis is useful for understanding the evolution of granite sheeting structures on this dome in Korea.

KW - Cosmogenic radionuclides

KW - Erosion rate

KW - Granite

KW - Sheeting

KW - Weathering

UR - https://www.scopus.com/pages/publications/33644544155

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DO - 10.1002/esp.1328

M3 - Article

AN - SCOPUS:33644544155

SN - 0197-9337

VL - 31

SP - 1246

EP - 1256

JO - Earth Surface Processes and Landforms

JF - Earth Surface Processes and Landforms

IS - 10

ER -

Estimation of episodic exfoliation rates of rock sheets on a granite dome in Korea from cosmogenic nuclide analysis

Abstract

Keywords

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