- Thumbnail
- Resource ID
- b98fb4da-a904-11eb-a5ad-0242c0a8100c
- Title
- 10. Deep-sea continental slope, banks and cold seep ecosystems off Brazil
- Date
- Jan. 5, 2021, midnight, Publication
- Abstract
- The continental margin off SE Brazil comprises the Santos and Campos sedimentary basins, which sustain some of the world’s most intensive oil and gas exploitation activities. These basins were formed nearly 100 million years ago, back when the South Atlantic was a narrow marine environment between South America and Africa. The region is characterised by extensive deep sedimentary environments and pockmark fields, where it is speculated that natural gas may be emitted from the seabed and potentially sustain chemosynthetic ecosystems. There are also steep rocky slopes that are home to important cold-water coral reef systems, irregularly threatened by fisheries activity. Many knowledge gaps exist in this region, and filling them is critical for responsible management of current and future human activities.
- Edition
- --
- Owner
- t.morato@gmail.com
- Point of Contact
- Morato
- t.morato@gmail.com
- Purpose
- Boundary of the iAtlantic study region: 10. Deep-sea continental slope, banks and cold seep ecosystems off Brazil
- Maintenance Frequency
- None
- Type
- not filled
- Restrictions
- None
- License
- Not Specified
- Language
- por
- Temporal Extent
- Start
- --
- End
- --
- Supplemental Information
- The boundary of Region #10 was slightly adjusted to better capture existing data UNIVALI have analysed available data available for Region #10 and suggested slight modifications of the original polygons.
During the September 2020 SC meeting it was suggested to evaluate the need for keeping region #10 and #11 separated or if they could be combined. It was noted that Region #10 refers to the slope of the continental margin, while Region #11 refers to a chain of seamounts. Since they are distinct geomorphological features with their own biophysical processes, they should be kept separated. It was also noted that the original polygons differentiated the two features better. However, to increase the chances for cruise opportunities in Brazil, Region #11 was extended.
- Data Quality
- --
- Extent
-
- x0: -48.463500976562500
- x1: -40.619499206543000
- y0: -30.320426940918000
- y1: -23.203479766845700
- Spatial Reference System Identifier
- EPSG:4326
- Keywords
- no keywords
- Category
- Boundaries
- Regions
-
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