What does CCD mean in geology?
What does CCD mean in geology?
Carbonate compensation depth – Wikipedia.
What is the difference between lysocline and CCD?
The lysocline and carbonate compensation depth (CCD) are two phenomena that affect the stability of calcite and aragonite in the deep ocean. The lysocline is the depth at which the rate of dissolution of calcite begins to increase dramatically.
What factors can affect the CCD?
Calcium carbonate solubility increases with increasing carbon dioxide content, lower temperatures, and increasing pressure. Other factors that can influence the dissolution of calcium carbonate: organic coatings on the grains, size of the grain (smaller grains dissolve faster).
How does the CCD affect sediments?
Calcareous sediments are fairly evenly distributed in oceans, but their occurrence is influenced by the solubility of calcium carbonate. Calcium carbonate forms and is stable in shallow, warm seawater, but it will dissolve in cold seawater.
What is CCD in photography?
A charge-coupled device (CCD) is a light-sensitive integrated circuit that captures images by converting photons to electrons. A CCD sensor breaks the image elements into pixels. Each pixel is converted into an electrical charge whose intensity is related to the intensity of light captured by that pixel.
What is CCD healthcare?
CCD is a generic term for an electronically generated, patient-specific clinical summary document. As a result, CCDs are sometimes called a few different names – Continuity of Care Document, Summary of Care Document, Summarization of Episode Note – just to name a few.
What is the difference between lysocline and compensation depth?
The lysocline is the depth in the ocean dependent upon the carbonate compensation depth (CCD), usually around 3.5 km, below which the rate of dissolution of calcite increases dramatically because of a pressure effect.
What is the difference between lysocline & compensation depth?
It was found that the lysocline is at a depth much deeper (about 2500 m deeper) than the saturation horizon of calcite, and several hundred meters shallower than the calcium carbonate compensation depth. Our results appear to support the kinetic point of view on the CaC03 dissolution mechanisms.
What is CCD in geochemistry?
The carbonate compensation depth, or CCD, is defined as the water depth at which the rate of supply of calcium carbonate from the surface is equal to the rate of dissolution. As long as the ocean floor lies above the CCD, carbonate particles will accumulate in bottom sediments, but below, there is no net accumulation.
What kind of sediment or rock are you likely not to find below the carbonate compensation depth CCD )?
Calcareous ooze would not be found below the CCD. Sediments derived from the remains of the hard parts of once-living organisms are called __________ sediments. Two common types of chemical compounds found in biogenous sediments are __________ and __________.
At what depth does CCD occur?
between 4 and 5 kilometers deep
In today’s oceans, the CCD is between 4 and 5 kilometers deep. It is deeper in places where new water from the surface can flush away the CO2-rich deep water, and shallower where lots of dead plankton build up the CO2.
What is a CCD quizlet?
What is a CCD? A charge coupled device is the oldest indirect conversion digital radiography system used to acquire a digital image.