Main Title |
Studies of Saprolite and its Relation to the Migration and Occurrence of Groundwater in Crystalline Rocks. |
Author |
Howard, II, J. Hatten ;
Hurs, V. J. ;
|
CORP Author |
Georgia Univ., Athens. Dept. of Geology. |
Year Published |
1972 |
Report Number |
DI-14-01-0001-1488; OWRR-B-010-GA; 01955,; B-010-GA(1) |
Stock Number |
PB-213 184 |
Additional Subjects |
( Ground water recharge ;
Hardpan) ;
( Hardpan ;
Permeability) ;
( Crystalline rocks ;
Weathering) ;
Metamorphic rocks ;
Subsurface drainage ;
Subsoil ;
Fluid infiltration ;
Aquifers ;
Georgia ;
Saprolite ;
Decomposed rock ;
Georgia piedmont
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-213 184 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
22p |
Abstract |
Geochemical, mineralogical, and textural studies of weathering mantles of crystalline rocks of the Georgia Piedmont show that a low-permeability horizon, which develops during the weathering of some rock types and which impedes infiltration of water from the surface, associates with the accumulation of kaolinite and oxides of iron, aluminum, and silicon. Three types of hardpan were found, but only one is extensive in its impedance of water infiltration. This is a dense layer, often several feet thick and composed of accumulations of hematite, kaolinite, and probably silica, which form in the weathering mantle of granitic and gneissic rocks. It may be possible to disrupt this low-permeability layer by application of organic reducing agents, thus increasing water infiltration for recharge of underlying aquifers. (Author) |
NTIS Title Notes |
Research project technical completion rept., Oct 67-Mar 71. |
PUB Date Free Form |
Oct 72, |
Category Codes |
8M; 8H; 64L; 64H |
NTIS Prices |
PC A02/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326534031 |
Origin |
NTIS |
Type |
CAT |