干旱区生态环境知识资源中心(Arid): Detection of hydrocarbon microseepage prospects using Landsat 8-based vegetation stress analysis in part of Assam-Arakan Fold Belt, NE India

Arid

DOI	10.1007/s12517-021-08376-6
	Detection of hydrocarbon microseepage prospects using Landsat 8-based vegetation stress analysis in part of Assam-Arakan Fold Belt, NE India
	Garain, Santosh; Mitra, Debashis; Das, Pranab
通讯作者	Das, P (corresponding author), Indian Sch Mines, Dept Appl Geol, Indian Inst Technol, Dhanbad, Jharkhand, India.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:19
英文摘要	Continuous migration of hydrocarbons from subsurface reservoir to the surface in the form of microseepage creates a reducing (anoxic) environment in the overlying soil and sediment cover. Growth of vegetation becomes restricted in such a hostile environment, and consequently, a vegetation anomaly or stress is developed in the microseepage area. Thus, vegetation stress can act as an indicator of hydrocarbon microseepage. However, very few studies have used vegetation stress in hydrocarbon exploration, and that, too, are limited to geographical areas characterized by arid to semi-arid climates. The present study attempts to detect prospective microseepage areas by analyzing Landsat 8-based vegetation stress in part of Assam-Arakan Fold Belt (AAFB), north-east India, characterized by heavy precipitation. The correlation between hydrocarbon microseepages and vegetation stress is first tested in an accessible part of the study area by soil gasometry and geochemical analysis. The sub-study area investigation reveals that hydrocarbon microseepage-bearing areas are confined to the stressed vegetation areas having low to moderate NDVI values. Based on the sub-study area observation, stressed vegetation areas are delineated and a microseepage prospect map is generated for the vegetated parts of the study area. Available geological and geophysical data, in general, support the hydrocarbons potentiality of these regions. The study proves that remote sensing-based vegetation stress analysis can help in narrowing down prospective areas for hydrocarbons in vegetation areas of humid regions also. The study will help explorationists to find primary hydrocarbon prospective areas in logistically difficult and environmentally sensitive vegetated terrains, where conventional hydrocarbon exploration is extremely challenging and, thereby, will save exploration cost and time.
英文关键词	Hydrocarbon microseepage Landsat-8 Vegetation stress NDVI Prospect exploration
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000694843400001
WOS关键词	CO2 CONCENTRATIONS ; OIL ; SEEPAGE ; REFLECTANCE ; POLLUTION ; CLIMATE ; INDEXES ; SOILS ; AREA
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368413
作者单位	[Garain, Santosh] Oil & Nat Gas Corp Ltd, AAFB Exploratory Asset, Silchar, Assam, India; [Mitra, Debashis] Indian Inst Remote Sensing, Dehra Dun, Uttarakhand, India; [Das, Pranab] Indian Sch Mines, Dept Appl Geol, Indian Inst Technol, Dhanbad, Jharkhand, India
推荐引用方式 GB/T 7714	Garain, Santosh,Mitra, Debashis,Das, Pranab. Detection of hydrocarbon microseepage prospects using Landsat 8-based vegetation stress analysis in part of Assam-Arakan Fold Belt, NE India[J],2021,14(19).
APA	Garain, Santosh,Mitra, Debashis,&Das, Pranab.(2021).Detection of hydrocarbon microseepage prospects using Landsat 8-based vegetation stress analysis in part of Assam-Arakan Fold Belt, NE India.ARABIAN JOURNAL OF GEOSCIENCES,14(19).
MLA	Garain, Santosh,et al."Detection of hydrocarbon microseepage prospects using Landsat 8-based vegetation stress analysis in part of Assam-Arakan Fold Belt, NE India".ARABIAN JOURNAL OF GEOSCIENCES 14.19(2021).