CHARACTERISTICS OF HELIUM ISOTOPES IN CO2 GAS IN THE YAOJIE COALFIELD AND ITS SIGNIFICANCE

CHARACTERISTICS OF HELIUM ISOTOPES IN CO2 GAS IN THE YAOJIE COALFIELD AND ITS SIGNIFICANCE

Ⅰ. INTRODUCTION The Yaojie Coalfield is situated in Honggu District of Lanzhou, Gansu Province. It is a coal-bearing fault basin formed on the basis of the fossil upwarping of the Mid-Qilian Mountains in the Jurassic period. The Jurassic deposits accumulated directly on the metamorphic rock system o...

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Veröffentlicht in:中国科学通报：英文版 1992 (2), p.126-130
1. Verfasser: 陶明信 徐永昌 陈发源 沈平 孙明良
Format: Artikel
Sprache:eng
Schlagworte:
CO2
crust
gas
helium
isotope
outburst
source
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Zusammenfassung:Ⅰ. INTRODUCTION The Yaojie Coalfield is situated in Honggu District of Lanzhou, Gansu Province. It is a coal-bearing fault basin formed on the basis of the fossil upwarping of the Mid-Qilian Mountains in the Jurassic period. The Jurassic deposits accumulated directly on the metamorphic rock system of the Precambrian Huangyuan Group in which the Middle Jurassic
ISSN:2095-9273