LANDSAT Data Analyses on Imageries of Niigata Oil Field.

Part 2 Comparative Analytical Test for Imageries from Digital Computer Processing

Abstract

In order to select an appropriate sort of imageries for a purpose of geological analyses, 18 frames data processed by the computer ploting, digitally, from CCT recorded the same region over Niigata oil bearing basins, have been studied analitycally under optical observation, based on geologic elemental features such as minor lineaments, major lineaments, circular anomalies, land-form units boundaries, and traceable strike ridge lines indicating trends of folding structures.
Test imageries of 18 frames consist of followings: 1) Principal component false color, 2) original B/W prints, Band-5, -7, 3) 3-Band composite false color, 4) B/W copies ratioed with 2-Band combinations directly and logarithmically, 5) two ratioed false color composites.
In this report, some of main analytical overlays carried out by three groups each of which is consisted of two geologists, are shown comparatively with their data imageries.
Descriptive tables and interesting figures from the comparison between data in quantitative volumes and differences in imagery qualities, are shown plainly, too, as the results of the work, with distinct conclusions about selecting imagery processing, methods of analyses, and some problems to be regarded.