Clarifying geological structure for coal and marsh gas development using magnetotelluric method

Title:

Clarifying geological structure for coal and marsh gas development using magnetotelluric method

Creator:

Asaue, Hisafumi, Sasahara, Misahito, Yoshinaga, Toru, Obara, Yuzo, Uchida, Kagemi, and Matsumoto, Hiroyuki

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:570e4b96-6ad6-4846-bf14-dd8d6a5b69c0
uuid:570e4b96-6ad6-4846-bf14-dd8d6a5b69c0
doi:10.13168/AGG.2013.0015
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, těžba uhlí, coal mining, apparent resistivity, cretaceous formation, Kushiro city, Osotsunai fault, Harutori fault, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

Magnetotelluric (MT) and audio-magnetotelluric (AMT) methods were applied to clarify the deep geological structure in a coal-mining area in Kushiro, southeastern Hokkaido, Japan. These methods are effective in surveying to deep. Onedimensional inversion was applied to the measurement data obtained in the MT and AMT surveys to estimate the resistivity distributions in the study area. In addition, the one-dimensional inversion method was improved to obtain accurate results by including a smoothing factor and Akaike’s Bayesian information criterion. The inversion method revealed that the lowresistivity zones at depths between 100 and 120 m below sea level correspond with the Yubetsu coal-bearing formation and clay layer, and the thickness of Cretaceous strata was estimated to be more than 4000 m. Finally, the dip of the Osotsunai fault was estimated., Hisafumi Asaue, Misahito Sasahara, Toru Yoshinaga, Yuzo Obara, Kagemi Ushida and Hiroyuki Matsumoto., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2013 Volume:10 | Number:2 (170)

Harvested from:

CDK

Metadata only:

false