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Titolo:
ESTIMATING LOCAL GROUNDWATER-FLOW CONDITIONS IN A GRANITOID - PRELIMINARY ASSESSMENTS IN THE WALDOBORO PLUTON COMPLEX, MAINE
Autore:
SIDLE WC; LEE PY;
Indirizzi:
US DOE,DIV TECH SUPPORT,POB 398705 CINCINNATI OH 45239 GROUNDWATER RES CO OXFORD OH 45056
Titolo Testata:
Ground water
fascicolo: 2, volume: 33, anno: 1995,
pagine: 291 - 303
SICI:
0017-467X(1995)33:2<291:ELGCIA>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYDRAULIC CONDUCTIVITY TENSOR; FIELD DETERMINATION; ANISOTROPIC MEDIA; AQUIFERS; RESERVOIR; FRACTURES; ROCKS; WELL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
48
Recensione:
Indirizzi per estratti:
Citazione:
W.C. Sidle e P.Y. Lee, "ESTIMATING LOCAL GROUNDWATER-FLOW CONDITIONS IN A GRANITOID - PRELIMINARY ASSESSMENTS IN THE WALDOBORO PLUTON COMPLEX, MAINE", Ground water, 33(2), 1995, pp. 291-303

Abstract

Periodic dry wells are reported by some homeowners in Knox and Lincoln Counties, Maine, These wells pump from the migmatitic Bucksport Fm. which is intermixed with the granitoids of the Waldoboro Pluton Complex, Previous remote sensing and geologic mapping delineated marked northeast-trending structures in the WPC which were initially suspected asinfluencing ground-water flow for sustainable well yields, A sample area, Pemaquid Pond, in the WPC was studied in more detail including preliminary hydraulic testing of homeowner wells and ground-water flow modeling. Wells with sustainable and greater yields appear to be associated instead with zones of northwest-trending structures in granitoidsnot intermixed with the Bucksport Fm. Dry wells appear to be more prevalent amongst northeast-trending structures in areas where the migmatitic metamorphic rocks outcrop, Hydraulic studies, including pumping, slug, pressure, and borehole dilution testing, resulted in a wide range of calculated hydraulic conductivities, Dual-porosity flow modeling and geostatistical parameterization of the flow conditions suggest that the anisotropic hydraulic conductivity is near E-9 m/d.

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Documento generato il 02/07/20 alle ore 22:26:25