Metal and other element partitioning in southwest Puerto Rico ultramafic soil, Rio Loco sediment, and Guanica Bay sediment

Five-stage sequential extractions were performed on ultramafic soil from Bosque Susua and Guanica Dry Forest, stream sediment from Rios Loco and Yauco, and nearshore sediment from Guanica Bay in southwest Puerto Rico. Sequential extractions showed partitioning of geologically enriched metals and other elements among five phases: 1) adsorbed and calcium-bound, 2) iron-, manganese-oxyhydroxide-bound, 3) crystalline iron-oxide-bound, 4) sulfide-bound, and 5) residual. Total element contents are also reported. Soil and sediment were collected between June 19, 2017, and March 27, 2018.

Categories: Data; Tags: Bay, Bosque Estatal de Susua, CMHRP, Coastal and Marine Hazards and Resources Program, Coastal plain, All tags... Geochemistry, Guanica Bay, Island of Puerto Rico, PCMSC, Pacific Coastal and Marine Science Center, Rio Loco, Rio Yauco, River, Sediment, Soil, Substrate, U.S. Geological Survey, USGS, Watershed, environment, geochemistry, geoscientificInformation, mass spectroscopy, soil chemistry, Fewer tags

Geochemical and isotopic compositions of stream sediment, parent rock, and nearshore sediment from southwest Puerto Rico, April 2017-June 2018

Geochemical and isotopic compositions were determined in stream sediment and parent rocks collected in April 2017 and June 2017 and in nearshore sediment collected bimonthly in sediment traps from May 2017 to June 2018 in the coastal zone and 12 drainages of southwest Puerto Rico: Rio Loco, Yauco, Guayanilla, Macana, Tallaboa, Matilde, Portugues, Bucana, Inabon, Jacaquas, Descalabrado, and Coamo. Geochemical compositional data include: a) total contents of major, minor, trace, and rare earth elements in the <0.063 mm-diameter fraction of terrestrial (n=53) and nearshore sediment (n=63) and powdered rocks (n=19) analyzed by inductively coupled plasma optical emission spectroscopy (ICP-OES) and inductively coupled...

Categories: Data; Tags: Bedrock geochemistry, CMHRP, Coastal and Marine Hazards and Resources Program, Geochemistry, Guanica Bay, All tags... Island of Puerto Rico, Isotope geochemistry, Lake Lucchetti, PCMSC, Pacific Coastal and Marine Science Center, Radiometric dating, Rio Bucana, Rio Coamo, Rio Descalabrado, Rio Guayanilla, Rio Inabon, Rio Jacaguas, Rio Loco, Rio Macana, Rio Matilde, Rio Portugues, Rio Tallaboa, Rio Yauco, Sediment geochemistry, Substrate, U.S. Geological Survey, USGS, Valle de Lajas, environment, geochemistry, geoscientificInformation, isotopic analysis, mass spectroscopy, rare earth elements, rocks and deposits, Fewer tags