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Updated: Jul 30, 2026
07:32
Dynamic Electrochemical Measurement of Chloride Ions
Published on: February 5, 2016
カナダ西部のプレカンブリア時代の石層における電気伝導度
1D. E. Boerner and J. A. Craven, Geological Survey of Canada, 615 Booth Street, Ottawa, Ontario K1A OE9, Canada. R. D. Kurtz and W. J. Davis, Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A OE8, Canada. G. M. Ross, Geologica.
Science (New York, N.Y.)
|January 29, 1999
まとめ
南アルカイアンチャーチル州 (ACP) は,周辺地域と比較して,地殻下層の石層に著しく高い電気伝導性を示しています. この伝導性の向上は,古プロテロゾーイク時代の地質学的な出来事とメタソマチズムによるものである可能性が高い.
科学分野:
- 地質物理学 地質物理学とは地質物理学です.
- 地質化学 地質化学
- テクトニクス (地質学) とは
背景:
- 南アルカイアンチャーチル州 (ACP) の下にある地殻下石層は,異常な電気伝導性を示しています.
- パレオプロテロゾーイク時代の石層の電気的性質は,一般的にオリヴィン導電性によって説明される.
研究 の 目的:
- 南部ACPの地殻下層の石層における高い電気伝導性の原因を調査する.
- この地域を改変した地質学的プロセスを理解する.
主な方法:
- リトスフィアの電気的性質の測定. 石灰圏の電気的性質の測定. 石灰圏の電気的性質の測定. 石灰圏の電気的性質の測定.
- マントルのクセノライトの分析.
- 地質地図作成. 地質地図作成.
主要な成果:
- 南部ACPの地殻下層の石層は,隣接するパレオプロテロゾイク期の地殻よりも10倍以上の電気伝導性を有しています.
- 証拠は,2つのパレオプロテロゾーイク潜水地帯の間に閉じ込められたために重要な石層の改変を示唆しています.
- 構造的に誘発されたメタソマチズムは,伝導性の強化の潜在的な原因です.
結論:
- 南部ACPの地殻下石層の高い電気伝導性は,古プロテロゾーイク時代の地質学活動と,その後のメタソマチズムに起因する.
- 地質物理学的および地質学的データは,この地域の石層進化の複雑な歴史を明らかにします.
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