Large deep-water coral banks in the Porcupine Basin, southwest of Ireland

Mol, Ben De; Rensbergen, P. Van; Pillen, S.; Herreweghe, K Van; Rooij, David Van; McDonnell, A.; Huvenne, Veerle A.I.; Ivanov, M.K.; Swennen, Rudy; Henriet, Jean‐Pierre

doi:10.1016/s0025-3227(02)00281-5

Cited by 279 publications

(297 citation statements)

References 48 publications

Supporting

Mentioning

288

Contrasting

Unclassified

Order By: Relevance

“…Beuck et al, 2010) and/or a change in ambient chemistry associated with burial leading to partial dissolution of aragonite, which was also related to the strong alteration and dissolution of coral fragments sampled at various sites in the Gulf of Cadiz (Kopf et al, 2004;Foubert et al, 2008). The basic requirements for the settlement and growth of cold-water corals are suitable substrates, supply of nutrients and low sedimentation rates in a hydrodynamic environment with long and stable (cool) water temperature conditions (e.g., Frederiksen et al, 1992;Rogers, 1999;De Mol et al, 2002;Freiwald, 2002;Freiwald et al, 2004;Alvarez-Péréz et al, 2005;Roberts et al, 2006). Recently, Dullo et al (2008) documented that cold-water corals in the Atlantic can adapt to a wide range of environmental conditions (temperature, salinity, dissolved oxygen) but they only thrive in seawater densities (sigma-theta, σ Θ ) between 27.35 and 27.65 kg m − 3 .…”

Section: Similarities and Differences Of Faunal Assemblages Between Tmentioning

confidence: 99%

Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera

et al. 2011

View full text Add to dashboard Cite

The Dhaka and Maya mud volcanoes (MVs), located in the Mud Diapir Province in the Western Alboran Basin along the Moroccan Coasts, were cored during the TTR-17, Leg 1 cruise. Cores were taken on the top of the volcanoes at a water depth of 370 m on the Dhaka MV (core TTR17-MS411G) and at 410 m water depth on the Maya MV (core TTR17-MS419G), respectively. On both mud volcanoes the extruded mud breccia provides the nucleation point for the colonization and development of cold-water corals and associated ecosystems. Two phases of cold-water coral growth are observed: (1) between slightly older than 4175± 62 years BP and around 2230± 59 years BP at Dhaka, and (2) between slightly older than 15583 ± 185 years BP and around 7613 ± 38 years BP at Maya MV. On the top of the Maya MV only a small patch reef and/or isolated corals proliferated, whereas a more extended patch reef colonized the top of the Dhaka MV. At both sites the cold-water coral development was triggered by the availability of a suitable substrate for initial coral settling, provided either as a firm ground or as single clasts. Subsequently coral growth was supported by enhanced nutrient flux possibly related to upwelling and/or strong currents. During the intervals of coral growth planktonic foraminiferal assemblages were dominated by Neogloboquadrina incompta. The decline of coral ecosystems on the mud volcanoes is accompanied at surface by a shift from the N. incompta dominated assemblage to a Globorotalia inflata dominated assemblage, possibly reflecting more oligotrophic conditions. This shift is coeval to the passage from wet to arid conditions at the end of the African Humid Period at Maya MV. It is interpreted as an effect of an early human impact on a fragile environment, which was already stressed by desiccation at the time of the development of complex human society along the Mediterranean coasts, at Dhaka MV.

show abstract

Section: Similarities and Differences Of Faunal Assemblages Between Tmentioning

confidence: 99%

Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera

et al. 2011

View full text Add to dashboard Cite

show abstract

“…The coral banks are prominent features on the margin and cause deflection and acceleration of benthic currents . Previous studies show that the local morphologic and hydrographic characteristics of this environment make this site attractive for cold-water coral settlement and growth, implying that benthic currents are also intrinsic to the growth of the mounds (De Mol et al 2002;Huvenne et al 2002;Wheeler et al, this volume). The present shape of the seafloor is derived from several geological, biological, oceanographic and climatologic events during the Late Cenozoic.…”

Section: Introductionmentioning

confidence: 93%

“…The north-eastern margin of the Porcupine Seabight is characterised by the presence of numerous giant coral banks (De Mol et al 2002Huvenne et al 2002Huvenne et al , 2005Foubert et al 2005;Wheeler et al, this volume) and sediment drifts (Van Rooij et al 2003) (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Quaternary sediment dynamics in the Belgica mound province, Porcupine Seabight: ice-rafting events and contour current processes

Rooij

Blamart

Richter

et al. 2006

Int J Earth Sci (Geol Rundsch)

View full text Add to dashboard Cite

The Belgica cold-water coral banks on the eastern slope of the Porcupine Seabight are closely associated with bottom currents. In order to better understand the local temporal and spatial characteristics, as well as the palaeoclimatologic influences, a 26 m long core, taken on a small contourite drift, was studied. This sediment record of approximately 100 ka BP reveals new insights into the regional glacial and sedimentary processes, which are intrinsically linked to several geological, climatological, biological and hydrodynamic variables. The glacial sequences in the core contain six ice-rafting events (IRE). They are comparable with the North Atlantic Heinrich Events, although their characteristics show dominant influences from the proximal British-Irish Ice Sheet (BIIS). These IRE have a low magnetic susceptibility and are deposited during two or three ice-rafting pulses. The record of ice-rafting suggests a millennial-scaled BIIS destabilisation and confirms the start of a final retreat about 25 ka ago. Additionally, the glacial sequence corresponds to a muddy contourite, influenced by bottom-current strength variations during interstadials, possibly triggered by sporadic reintroductions of Mediterranean Outflow Water in a glacial North Atlantic Ocean. The interglacial sequence features an 11-m thick deep-water massive sand unit, probably deposited under a highenergy bottom-current regime.

show abstract

“…Recent carbonate mounds stand as natural laboratories to link the build-up history and architecture to high-resolution sequence stratigraphy. Several studies in recent years have described environmental parameters controlling the growth and development of cold-water coral carbonate mounds on the North-east Atlantic continental margin (De Mol et al, 2002;Dorschel et al, 2005;Rüggeberg et al, 2005;Dorschel et al, 2007;Rüggeberg et al, 2007;Van Rooij et al, 2007;Huvenne et al, 2009;Margreth et al, 2009;Mienis et al, 2009;Van Rooij et al, 2009, among others).…”

Section: Keys To Palaeoenvironmental Controlmentioning

confidence: 99%

“…It was proposed that the detailed, curiosity-driven research on sub-recent mounds might yield new views on old mounds (Henriet et al, 2002). Carbonate mound building is indeed a recurrent, yet poorly understood strategy of Life throughout Phanerozoic times.…”

Section: Introduction: Carbonate Mounds In Shallow and Deep Timementioning

confidence: 99%

Carbonate mounds in shallow and deep time

et al. 2011

View full text Add to dashboard Cite

Over a decade of research on recent cold-water coral mounds in various oceans has set the stage for comparative studies between recent and ancient carbonate mound systems, with the aim to unravel generic processes and reveal the "red thread" in a fundamental strategy of Life building Geology -a strategy nearly as ancient as Life itself. Natural laboratories have been identified in the present ocean, which provide new insights in oceanographic controls on species migration and settlement, in the interaction of currents and carbonate build-up, in the earliest diagenesis which overprints environmental signals and shapes the template of compartmentalization of carbonate build-ups, and in so many other processes and factors ultimately shaping carbonate bodies, comparable in size and properties to the large-scale carbonate hydrocarbon reservoirs in the geological record. Ocean drilling and coring is an essential component of this research. Ideally, this process is a two-way avenue between Shallow and Deep Time, where fundamental and industrial knowledge about fossil carbonate mounds can drive further investigations and even experimentation in the present seas, while the discoveries and process studies on "live" systems can yield new insights in the architecture and evolution of ancient reservoir systems. This bridging exercise is the quintessence of COCARDE (Cold-Water Carbonate Reservoir Systems in Deep Environments), an international network under the auspices of IOC-UNESCO (http://www.cocarde.eu). COCARDE has organised two workshops in 2009, with a significant support of European programmes (e.g. ESF Magellan workshop series) and partner projects (e.g. ESF EuroDIVERSITY project MiCROSYSTEMS). This special issue groups 12 papers, all addressing observations which by their nature have the potential to provide keys to generic processes, of relevance for past carbonate systems. As COCARDE proceeds, it is the objective to "reciprocate" in near future with an equivalent grouping of contributions from the study of fossil studies, to guide further research in the present ocean. It is the purpose of COCARDE to strengthen such a reflux from the studies of fossil systems by stimulating relevant continental drilling exercises, with comparable sampling protocols, resolution and analytical procedureswhere relevant -to allow direct comparisons with records from ocean drilling. The papers in this special issue have been structured in four themes: (i) keys to palaeoenvironmental control, (ii) mound initiation, growth and demise, (iii) of microbes and mounds, and (iv) tracking organomineralsRecent and Ancient.

show abstract

Large deep-water coral banks in the Porcupine Basin, southwest of Ireland

Cited by 279 publications

References 48 publications

Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera

Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera

Quaternary sediment dynamics in the Belgica mound province, Porcupine Seabight: ice-rafting events and contour current processes

Carbonate mounds in shallow and deep time

Contact Info

Product

Resources

About