Lineament Mapping Using Remote Sensing Techniques for Geologic CO2 Sequestration Site Characterization, in Gbaran, Bayelsa State Nigeria

Abstract

The increase in CO2 in the atmosphere due to hydrocarbon exploitation, gas flaring, human activities has led to global warming and adverse environmental effect.Geologic carbon sequestration is one of the environmental mitigation measures for CO2 reduction and storage in the subsurface. Gbaran in Bayelsa state, is located within the Niger Delta sedimentary Basin, with formations such as depleted oil and gas wells that abound there which could be suitable for geosequestration.In line with this, geospatial technique was done for lineament mapping in the study area to infer the subsurface structures where faults are located to prevent selecting areas unsuitable for such projects in the future.Multiple satellite image processing and interpretation techniques were done on false color composite (FCC) band combinations of LANDSAT 8 (OLI) for precise lineament extraction (both manual and automated) as well as spatial analysis. Softwares used include ERDAS, ArcGIS10.3, PCI Geomatica, and Rockwork.Lineament density maps rose diagram plots, and spatially correlated lineament density maps were produced for various FCC images, showing areas with varying degree of lineament concentration.The spatial correlated lineament map produced could provide a base line data for geosequestration site characterization in the study area.

El-Gendi Fortress: a new military and religious geo-archaeological site, Sinai, Egypt: geomorphological and hydrogeological remarks

“…Lineaments are extracted so that they can be compared to the extracted structure from other tools. The primary advantage of automated lineament elimination is its ability to provide a method for classifying images, handling quickly-completed operations, and extracting lineaments that are not recognized by human eyes [61].…”