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Protecting marine habitats - British Geological Survey
Protecting marine habitats - British Geological Survey

... habitats is poorly understood. Furthermore, the relationships between the habitats found within the sedimentfilled channels and those surrounding them also needs to be explored. We need to understand whether variability in the underlying geology influences the overlying sea-bed habitats or whether o ...
GLY 150 Exam #1 STUDY GUIDE
GLY 150 Exam #1 STUDY GUIDE

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MB Chapter 02
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Chapter 18 – The Ocean Floor Outline (NOTE NEW CHAPTER TITLE)
Chapter 18 – The Ocean Floor Outline (NOTE NEW CHAPTER TITLE)

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Marine Biology Stahl History of Marine Science and Scientific

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Variables Change Earth Study Guide

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GEOLOGY 335 LAB -- SEDIMENTARY PROCESSES
GEOLOGY 335 LAB -- SEDIMENTARY PROCESSES

... lagoons. Such sediments are well washed by wave action and is typically clean, well-sorted quartz sand. Behind the bars and adjacent to the beaches, tidal flats may occur where fine silt and mud are deposited; evaporites may be present locally. Shallow Marine. Shallow seas are widespread along conti ...
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... represents a parallel to subparallel trend to the northeastsouthwest local topographical trend. The sediment is thick along basement depressions and forms small lens-shaped basins. The thickest sediment is found in the northwestern area where the total thickness reaches up to 0.7 s. This sedimentary ...
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Sedimentary basins - personal.kent.edu

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4-11 and 4-12 Earth Review

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Sediment Profile Imagery



Sediment Profile Imagery (SPI) is an underwater technique for photographing the interface between the seabed and the overlying water. The technique is used to measure or estimate biological, chemical, and physical processes occurring in the first few centimetres of sediment, pore water, and the important benthic boundary layer of water. Time-lapse imaging (tSPI) is used to examine biological activity over natural cycles, like tides and daylight or anthropogenic variables like feeding loads in aquaculture. SPI systems cost between tens and hundreds of thousands of dollars and weigh between 20 and 400 kilograms. Traditional SPI units can be effectively used to explore continental shelf and abyssal depths. Recently developed SPI-Scan or rSPI (rotational SPI) systems can now also be used to inexpensively investigate shallow (<50m) freshwater, estuarine, and marine systems.
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