PRELIMINARY RESULT FOR THE Sm-Nd WHOLE-ROCK AGE OF THE METAMORPHIC ROCKS FROM MOUNT PARDOE IN THE NAPIER COMPLEX, EAST ANTARCTICA

The Sm-Nd whole rock isochron age was determined for metamorphic rocks from Mount Pardoe, Napier Complex. Acidic gneiss (orthopyroxene-mesoperthite-quartz gneiss), being one of the main representative metamorphic rocks, gave an age of 2516±274 Ma with an initial ^<143>Nd/^<144>Nd ratio o...

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Bibliographic Details
Main Authors: タイノショウ ヨシアキ, カガミ ヒロオ, タカハシ ユウヘイ, イイズミ シゲル, オサナイ ヤスヒト, ツチヤ ノリヨシ, Yoshiaki TAINOSHO, Hiroo KAGAMI, Yuhei TAKAHASHI, Shigeru IIZUMI, Yasuhito OSANAI, Noriyoshi TSUCHIYA
Format: Report
Language:English
Published: Department of Natural Environment, Faculty of Human Development, Kobe University 1994
Subjects:
East Antarctica
Napier
Pardoe
Mount Pardoe
Antarc*
Antarctica
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2756
http://id.nii.ac.jp/1291/00002756/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2756&item_no=1&attribute_id=18&file_no=1
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Summary:The Sm-Nd whole rock isochron age was determined for metamorphic rocks from Mount Pardoe, Napier Complex. Acidic gneiss (orthopyroxene-mesoperthite-quartz gneiss), being one of the main representative metamorphic rocks, gave an age of 2516±274 Ma with an initial ^<143>Nd/^<144>Nd ratio of 0.50914±0.00021. εNd values normalized to 2516 Ma for individual acidic gneiss range from -3.7 to -7.0. This Sm-Nd whole-rock isochron age indicates a major period of equilibration of the isotopic system on a whole-rock scale at 2516±274 Ma.

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