skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The accumulation of Ni in serpentines and garnierites from the Falcondo Ni-laterite deposit (Dominican Republic) elucidated by means of μXAS

Authors:
; ;
Publication Date:
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1417500
Grant/Contract Number:
AC02-05CH11231
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Geochimica et Cosmochimica Acta
Additional Journal Information:
Journal Volume: 198; Journal Issue: C; Related Information: CHORUS Timestamp: 2018-01-19 05:36:12; Journal ID: ISSN 0016-7037
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

Citation Formats

Roqué-Rosell, Josep, Villanova-de-Benavent, Cristina, and Proenza, Joaquín A. The accumulation of Ni in serpentines and garnierites from the Falcondo Ni-laterite deposit (Dominican Republic) elucidated by means of μXAS. United States: N. p., 2017. Web. doi:10.1016/j.gca.2016.11.004.
Roqué-Rosell, Josep, Villanova-de-Benavent, Cristina, & Proenza, Joaquín A. The accumulation of Ni in serpentines and garnierites from the Falcondo Ni-laterite deposit (Dominican Republic) elucidated by means of μXAS. United States. doi:10.1016/j.gca.2016.11.004.
Roqué-Rosell, Josep, Villanova-de-Benavent, Cristina, and Proenza, Joaquín A. Wed . "The accumulation of Ni in serpentines and garnierites from the Falcondo Ni-laterite deposit (Dominican Republic) elucidated by means of μXAS". United States. doi:10.1016/j.gca.2016.11.004.
@article{osti_1417500,
title = {The accumulation of Ni in serpentines and garnierites from the Falcondo Ni-laterite deposit (Dominican Republic) elucidated by means of μXAS},
author = {Roqué-Rosell, Josep and Villanova-de-Benavent, Cristina and Proenza, Joaquín A.},
abstractNote = {},
doi = {10.1016/j.gca.2016.11.004},
journal = {Geochimica et Cosmochimica Acta},
number = C,
volume = 198,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2017},
month = {Wed Feb 01 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.gca.2016.11.004

Save / Share:
  • In order to monitor changes caused by local and global human actions to a coral reef ecosystem, we sea-truthed a natural color Landsat TM image prepared for a coastal region of the northwestern Dominican Republic and recorded average water depth, precise geographical positions, and bottom types (seagrass, 15 sites; coral reef, ten sites; and sand, six sites). There were no significant differences in depth for the bottom type groups. The depths ranged from 0 to 16.1 m. Mean digital counts of seagrass and coral reef sites did not differ significantly in any band. A multivariate analysis of variance using allmore » three bands gave similar results. A ratio of the green/blue bands (TM 2/TM 1) showed there was a spectral shift associated with increasing depth, but not bottom type. Due to small-scale patchiness, seagrass and coral areas were difficult to distinguish, but sandy areas can be distinguished using Landsat TM imagery and our methods. 12 refs.« less
  • Although total rural electrification by grid extension is an impossible mission, photovoltaic power provides new and economical possibilities for electricity in the Dominican countryside. In most areas, kerosene lamps and batteries provide light and power. Some people carry lead-acid batteries every week, often by mule, to be recharged in an electrified village. To address this need for clean dependable power sources, a nonprofit group called Enersol Associates was created in 1984. This organization offers technical assistance and training to Dominican businesses and nonprofit organizations, in order to complete the commercial chain for photovoltaic technology. Enterprising residents of rural areas nowmore » make a living by offering electric power to people for whom it was previously unattainable unless they moved to more densely populated areas serviced by the (undependable) electric grid. These villagers assemble, sell, install, repair and guarantee their products and workmanship. Job creation is a significant outcome of the project, for in the countryside unemployment often reaches 50 percent. Although the photovoltaic systems usually pay for themselves in less than five years, financing is often needed to spread the $200-to-$500 cost of the system over many monthly payments.« less
  • Exploration companies are exploring two tracts in separate basins of the Dominican Republic. Drilling is under way or planned in the eastern Cibao basin in the northeastern part of the country, where Petrolera Once Once SA holds a 1,001,287 ha concession, and the Azua-Bani basin in the southwester, where Mobil-Murfin holds a 2,266,197 ha concession. About 75 wells have been drilled onshore in Dominican Republic, but commercial production has not been established. This paper summarizes the exploration history and geology of the area.
  • This paper reviews the exploration history of the Dominican Republic and describes two new exploration programs currently underway to drill in two of the regions sedimentary basins. Drilling is to occur in the Cibao and Azua-Bani basins based on a review of existing well logs and seismic data. The paper also briefly describes the regional setting and geology of these basins.