Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

 
Main Menu

· Home
· Contacts
· Data Systems
· Documents
· FAQ
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Wiki
· Worldconference

 

Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [66666]
Miocene cold seeps faunas and carbonates from Barbados
Harding, I.C. (1998). Miocene cold seeps faunas and carbonates from Barbados. Cah. Biol. Mar. 39(3-4): 341-344. https://dx.doi.org/10.21411/CBM.A.E990A13B
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094
Also appears in:
(1998). Proceedings of the First International Symposium on Deep-Sea Hydrothermal Vent Biology: Funchal, Madeira, Portugal 20-24 October 1997. Cahiers de Biologie Marine, 39(3-4). Station Biologique de Roscoff: Roscoff. 219-392 pp., more
Peer reviewed article  

Available in  Author 

Keyword
    Marine/Coastal

Author  Top 
  • Harding, I.C.

Abstract
    Barbados represents a subaerial exposure of the crestal zone of the Barbados accretionary prism, on the eastern margin of the Caribbean tectonic plate (Olu, et al., 1997). Erosion of the Pleistocene reef cap in NE Barbados exposes two Eocene-Miocene aged structural units: the accretionary Basal Complex, and the overlying pelagic Oceanic Series oozes. These units are everywhere in fault contact and overlap in depositional ages. Westward (arcward) migration of the western margin of the accretionary prism caused contraction and uplift of the outer Grenada Foreare Basin strata, emplacing the Oceanics as allochthonous backthrust nappes overriding the crest of the accretionary complex (Torrini, et al., 1985; Speed, 1990). These two units are separated by a major tectonic unit, the sub-Oceanic fault cone (SOFZ of Torrini, et al., 1985), a detachment surface along which fluid migration from dewatering of the accretionary prism appears to have been concentrated (Torrini, et al., 1990). The SOFZ is a laterally continuous zone 3-20 m thick, the central zone of which was apparently the 'surface' of greatest displacement. Fluid migration and authigenic, methane-derived carbonate precipitation within the SOFZ were apparently genetically related to the emplacement of the Oceanic nappes and the late intraprism contraction. Fluid migration was syn- to early post-faulting (early Miocene), with authigenic carbonates locally cross-cutting and replacing foliated fault zone rocks (Torrini, et al., 1990). The authigenic carbonates have yielded fossil cold seep faunas and carbonate chimneys. The material examined from Bath Cliffs, consists of both in situ specimens and eroded beach cobbles, whereas at Windy Hill, Belleplaine and Morgan Lewis the carbonates occur as ex situ clitter, either as 'remaine' horizons from long-eroded fault zones previously existing at higher structural levels, or eroded from buried fault zones. Specimens have also been collected at Coconut Grove, from the Joe's River mdlange, a sandy, organic-rich mudstone containing large angular exotic blocks. This extensive mAlange is believed to be a massive diapiric structure, intruded into surrounding strata post-nappe emplacement (Speed, 1990).

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Author 


If any information here appears to be incorrect, please contact us
Back to Register of Resources
 
Quick links

MarBEF WIKI

Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)
Outreach

Science
Responsive Mode Programme (RMP) - Marie Nordstrom, copyright Aspden Rebecca

WoRMS
part of WoRMS logo

ERMS 2.0
Epinephelus marginatus Picture: JG Harmelin

EurOBIS

Geographic System

Datasets

 


Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact data-at-marbef.org