Artificial Neural Network Model in Spatial Analysis of Geographic Information System

Table 3

Summary table of lithology description in the study area.

Stratum name		Code name	Distributed	Lithology
Fourth series	Holocene	a	Both sides of the river, first-level terraces, and floodplains	The upper section is mainly brown-red, brown-yellow silty clay
	Upper Pleistocene system	b	Plain areas, secondary terraces, and some terrace areas	The upper part is gray-yellow sandy clay
	Pleistocene	c	There is also a small amount of sporadic exposure in the plateau area and the plain area	The upper part is brown-red sandy clay
Cretaceous	Irrigation group	d	Exposed in the eastern Taiwan region of County B, sporadically exposed on the two wings of the su wharf anticline in County A	Brown-red mudstone with argillaceous siltstone
	Clipping group	e	Exposed in the low mountains in the southern part of county B and the two wings of the su wharf anticline in County A	Brown-red, gray-yellow, medium-to-thick massive silty fine sandstone, argillaceous siltstone
Jurassic	Penglai town group	f	The shallow hilly area in the south of County B	The upper part is purple-red, purple-grey medium-thick layered fine sandstone
	Suining group		North west wing of Longquanshan anticline, Shuangliu county	Fuchsia mudstone intercalated with argillaceous siltstone