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DISTRIBUTIONS OF LIGHT HYDROCARBONS IN THE NEAR SURFACE ZONE CONNECTED WITH MEASUREMENTS OF MAGNETIC SUSCEPTIBILITY IN THE MARGINAL PART OF THE CARPATHIAN FOREDEEP AND OUTER CARPATHIANS - CASE STUDY FROM SE POLAND

Adrianna Góra

First published: 2019-06-20https://doi.org/10.5593/sgem2019/1.2/s06.100View metrics

Abstract

The paper presents an attempt to integrate the results of surface geochemical survey (?free gas? method) and soil magnetic susceptibility carried out in "Brzesko-Wojnicz" area, the SE part of Poland. The measurement profile is located at the border of two regional tectonic units: the central part of the Carpathian Foredeep and the Outer Carpathians. . The purpose of the article was to find out a relationship between different indicators of hydrocarbon microseepage, which can provide useful information, especially in petroleum prospecting. A total of 38 soil and soil gas samples were collected from 1.2 m depth below the surface. Maximum concentrations of CH4, total alkanes C2-C5, total alkenes C2-C4 in soil gas samples reached: 36.1 ppm, 0.95 ppm and 0.23 ppm, respectively. Very low values of magnetic susceptibility of soil ranged between 0.8 and 12.9 10-8 m3/kg. Moreover, the results of hydrocarbon concentrations and magnetic susceptibility measurements of soil gas samples were presented in a linear plot and then integrated with seismic image. The method presented in this paper is a complementary one and its results allow to better understanding of the complexity of hydrocarbon migration mechanisms in the studied area.

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Publication details

Title
DISTRIBUTIONS OF LIGHT HYDROCARBONS IN THE NEAR SURFACE ZONE CONNECTED WITH MEASUREMENTS OF MAGNETIC SUSCEPTIBILITY IN THE MARGINAL PART OF THE CARPATHIAN FOREDEEP AND OUTER CARPATHIANS - CASE STUDY FROM SE POLAND
Authors
Adrianna Góra
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining
Publisher
STEF92 Technology
Year
2019
Pages
795-802
SWS Citekey
Gora20196795802
ISSN
1314-2704
ISBN
978-619-7408-77-5
Language
en
Publication type
Conference Paper
Keywords
surface geochemical surveylight hydrocarbonsmagnetic susceptibilityCarpathian ForedeepPoland
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