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(Article of periodic en Anglais - 2013)

Document title

Probing the deep critical zone beneath the Luquillo Experimental Forest, Puerto Rico

Authors(s) and Affiliation(s)

BUSS H.L. (1) ; BRANTLEY S.L. (2) ; SCATENA F.N. (3) ; BAZILIEVSKAYA E.A. (2) ; BLUM A. (4) ; SCHULZ M. (5) ; JIMÉNEZ R. (3) ; WHITE A.F. (5) ; ROTHER G. (6) ; COLE D. (7) ;
(1) School of Earth Sciences, Univ., Bristol, ROYAUME-UNI
(2) Earth and Environmental Systems Inst., The Pennsylvania State Univ., Park, ETATS-UNIS
(3) Dept. of Earth and Environmental Sciences, Univ. of Pennsylvania, Philadephia, ETATS-UNIS
(4) U.S. Geological Survey, Boulder, ETATS-UNIS
(5) U.S. Geological Survey, Menlo Park, ETATS-UNIS
(6) Chemical Sciences Division, National Lab., Oak Ridge, ETATS-UNIS
(7) School of Earth Sciences, Ohio State Univ., Columbus, ETATS-UNIS

Abstract

The AA. investigate the chemical weathering, fracturing and geomorphology of the deep critical zone in the Bisley watershed in the Luquillo Critical Zone Observatory, Puerto Rico, from 2 boreholes. Weathered rinds developed on exposed corestones aboveground and along fracture surfaces on subsurface rocks. Such corestones at the land surface are assumed to be what remains after exhumation of similar, fractured bedrock pieces that were observed in the drilled cores between thick layers of regolith. Some of these subsurface corestones are massive and others are highly fractured, whereas aboveground corestones are generally massive with little to no apparent fracturing. Subsurface corestones are larger and less fractured in the borehole drilled on a road where it crosses a ridge compared with the borehole drilled where the road crosses the stream channel. Both borehole profiles indicate that the weathering zone extends to well below the stream channel in this upland catchment; hence weathering depth is not controlled by the stream level within the catchment and not all of the water in the watershed is discharged to the stream

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2013, vol. 38, no10 [pp. 1170-1186]

Bibliographic references : 2 p.

Collation : 13 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3409

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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