Results 21 to 30 of about 3,269 (164)
Controls on authigenic carbonate precipitation at cold seeps along the convergent margin off Costa Rica [PDF]
, 2010 Five sediment cores from cold seeps at the forearc off Costa Rica were used to explore the relationship between fluid advection, dissolved Ca concentrations in upward migrating fluids, and authigenic CaCO3 precipitation.
Hensen, Christian +2 more
core +1 more source
The Fossil higher plants from the Canal Zone [PDF]
, 1918 Fossil flora described in the present report is too limited for purposes of exact correlation, which may be expected to be settled by the marine faunas present at most horizons in the Isthmian region.
Berry, Edward W.
core
Ecology and Reproduction of Bunodeopsis in Tropical Northwestern Atlantic Seagrass Ecosystems
Marine Ecology, Volume 47, Issue 2, March/April 2026.ABSTRACT The seagrass ecosystems of the Tropical Northwestern Atlantic (TNA) host three described species of sea anemones in the genus Bunodeopsis Andres, 1881 (Enthemonae: Metridioidea: Acuticulata): B. antilliensis, B. globulifera, and B. pelagica.
Isabel A. M. Pen +15 more
wiley +1 more source
The demography of hurricane effects on two coral populations differing in dynamics
Ecosphere, Volume 10, Issue 9, September 2019., 2019 Abstract On most tropical coral reefs, decades of disturbances have ratcheted down coral cover to create low abundance communities. In such a state, the reefs of St. John, US Virgin Islands, were hit by two Category 5 hurricanes in September 2017, yet the effects on two sites dominated by Orbicella annularis were minor in terms of coral cover.
Peter J. Edmunds
wiley +1 more source
The ecological basis of fishery yield of the Puerto Rico-Virgin Islands Insular Shelf: 1987 Assessment [PDF]
, 2006 A literature review was conducted to locate information on the flow of energy from primary producers to the fishery stocks of the Puerto Rican-Virgin Islands insular shelf.
Browder, Joan A., Jacobsen, Terri
core
Research Activities at U.S. Government Agencies in Subsurface Reactive Transport Modeling
Vadose Zone Journal, Volume 6, Issue 4, Page 805-822, November 2007., 2007 The fate of contaminants in the environment is controlled by both chemical reactions and transport phenomena in the subsurface. Our ability to understand the significance of these processes over time requires an accurate conceptual model that incorporates the various mechanisms of coupled chemical and physical processes.
Randall T. Cygan +9 more
wiley +1 more source
A 928 sq m (10000 sq ft) solar array [PDF]
, 1972 As the power requirements for space vehicles increases, the area of solar arrays that convert solar energy to usable electrical power increases. The requirements for a 928 sq m (10,000 sq ft) array, its design, and a full-scale demonstration of one ...
Lindberg, D. E.
core +1 more source
Unusual Drainages of the Americas
Water Resources Research, Volume 61, Issue 2, February 2025.Abstract While most rivers and lakes follow predictable principles of hydrology and geology, a few seem to defy the rules. Some rivers diverge rather than converge; some rivers flow in two directions; some lakes have not one but two outlets; some watersheds have ambiguous boundaries.
Robert B. Sowby, Adam C. Siegel
wiley +1 more source
Metales traza en sedimentos costeros de Costa Rica
Revista de Biología Tropical, 2004 Se determinó la concentración de hierro, plomo, cobre y zinc, en sedimentos de cuatro ecosistemas costeros de Costa Rica, por espectroscopia de absorción atómica, con llama o con horno de grafito.
Jairo García-Céspedes +2 more
doaj
Cuadernos de Antropología, 2015 Como un estudio preliminar, el objetivo principal es determinar la composición de pasta de dos tipos de cerámica, el Usulután Negativo y el Rosales Esgrafiado, recuperados en los sitios Loma Corral 3 (G-776 LC3) y Manzanillo (G-430MZ) en la bahía de Culebra, Guanacaste. El análisis petrográfico de las cerámicas Usulután y Rosales Esgrafiado del período
openaire +3 more sources