Accession Number : AD0698399

Title :   DEEP ALTERATION OF CARBONIFEROUS STRATA IN THE MIDDLETON, CO. CORK DISTRICT AS DETECTED BY GRAVITY SURVEYING. PLATES XXVL-XXVII,

Corporate Author : ROYAL IRISH ACADEMY DUBLIN

Personal Author(s) : Murphy,Thomas

Report Date : 22 FEB 1966

Pagination or Media Count : 19

Abstract : At several places in the Cork Syncline, in particular close to the northern Devonian-Carboniferous contact, closed negative gravity anomalies occur. These range up to 4 mgal amplitude and cover about a square kilometre. The cause suggested is decomposition of the Carboniferous Shale and solutioning of the Carboniferous Limestone to a depth of 180 m below the surface, the cavities being filled with the insoluble residue of the limestone and shale together with other washed-in material. The age, by comparison with similar known occurrences in Ireland and England, is probably Tertiary. (Author)

Descriptors :   (*STRATIGRAPHY, IRELAND), GRAVITY, ANOMALIES, DETECTION, SURVEYING(GEOGRAPHIC), SHALE, LIMESTONE, GEOLOGIC AGE DETERMINATION, MINERALS, DENSITY, SANDSTONE, MEASUREMENT

Subject Categories : Geology, Geochemistry and Mineralogy

Distribution Statement : APPROVED FOR PUBLIC RELEASE