Age of the Los Ranchos Formation, Dominican Republic: Timing and tectonic setting of primitive island arc volcanism in the Caribbean region

2005 ◽  
Vol 117 (7) ◽  
pp. 987 ◽  
Author(s):  
Stephen E. Kesler ◽  
Ian H. Campbell ◽  
Charlotte M. Allen
2020 ◽  
Vol 9 (3) ◽  
pp. 165
Author(s):  
Gregorio Rosario Michel ◽  
Santiago Muñoz Tapia ◽  
Fernando Manzano Aybar ◽  
Vladimir Guzmán Javier ◽  
Joep Crompvoets

In recent years, a growing number of stakeholders have been taking part in the generation and delivery of geospatial information and services to reduce the impact of severe natural disasters on the communities. This is mainly due to a huge demand for accurate, current and relevant knowledge about the impacted areas for a wide range of applications in risk-informed decision makings. The aim of this paper is to identify users’ requirements for emergency mapping team (EMT) operations in the Dominican Republic (DR). An online survey was applied to collect data from key users involved in the Inter-Institutional Geospatial Information Team in DR. Our findings suggest a set of users’ requirements for EMT operations: (1) standardization; (2) establishing and maintaining a spatial data infrastructure; (3) partnership; (4) effective communication among stakeholders; and (5) capacity building. A better understanding of the users’ requirements and the associated information workflows will lead to a superior level of readiness for EMT operations in DR. This knowledge will support future studies/practices at the local and national levels in the Caribbean region, which share similar challenges in terms of natural hazards and development issues.


1991 ◽  
Vol 74 (1-4) ◽  
pp. 289-308 ◽  
Author(s):  
D.K. Larue ◽  
A.L. Smith ◽  
J.H. Schellekens

1992 ◽  
Vol 20 (4) ◽  
pp. 55-71 ◽  
Author(s):  
Addington Coppin

This study examines the trade and investment performances of three economies in the Central Caribbean region since the Caribbean Basin Initiative (CBI) and associated programs. We find that the rapid growth in nontraditional exports from these economies to the United States did not necessarily translate into net foreign exchange earnings. On a per capita basis, export-related investment in Haiti was much lower than in the other two economies — Jamaica and the Dominican Republic. As a percentage of the labor force, gross employment gains for Jamaica have been significantly larger than those in either the Dominican Republic or Haiti. It appears that the policies favoring expansion in the offshore sector may foster employment opportunities of females, especially where traditional sectors are in decline.


1994 ◽  
Vol 31 (1) ◽  
pp. 176-181 ◽  
Author(s):  
Gary G. Lash

The Riding Island Graywacke (late Caradoc – Ashgill) crops out in Notre Dame Bay, north-central Newfoundland. Previous tectonic interpretations suggest that this succession of turbidites and hemipelagic mudstone accumulated in a basin adjacent to an active volcanic arc. The varied framework mineralogy of 29 Riding Island samples studied, however, records derivation from a complex source terrane composed of mafic and silicic volcanic rocks, sedimentary and metamorphic successions, and plutonic rocks. Assessment of the tectonic environment of deposition of the Riding Island Graywacke by use of popular sandstone provenance ternary diagrams yields ambiguous results. The mineralogy of the Riding Island samples reveals a change in tectonic scenario from one dominated by island-arc volcanism in pre-Caradoc time to a setting marked by tectonic shortening, transcurrent faulting, and terrane accretion near the end of the Ordovician. The complex composition of these sandstones and the fact that they accumulated after island-arc volcanism had ended argue for deposition in a collisional successor basin that formed during the early stages of mountain building along the proto-North American continental margin. This inferred Late Ordovician collisional successor basin may have also been the locus of deposition for other minera-logically complex late Caradoc – Ashgill units exposed in Notre Dame Bay, such as the Sansom Formation.


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