PPT-Lecture 9: Ocean Carbonate Chemistry:

Carbonate Reactions Reactions and equilibrium constants K Solutions numerical graphical What can you measure Theme 1 continuation Interior Ocean Carbon Cycle Theme 2 Ocean Acidification man. Ocean Distributions. Ocean Distributions. Controls on Distributions. What is the distribution of CO. 2. added to the ocean?. See Section 4.4 Emerson and Hedges. Sarmiento and Gruber (2002) Sinks for Anthropogenic Carbon. For tens of millions of years, Earth's oceans have maintained a relatively stable acidity level. It's within this steady environment that the rich and varied web of life in today's seas has arisen and flourished. But research shows that this ancient balance is being undone by a recent and rapid drop in surface pH that could have devastating global consequences.. Carbon Dioxide and our Oceans. What is Ocean Acidification and how does it affect the me?. http://youtu.be/aG3n1fAa7vk. “. Acid Test” 3 Minute intro video clip. OR. . The Natural Resources Defense Council (NRDC) documentary explores ocean acidification, which is challenging marine life on a path not seen for tens of millions of years. The film, featuring Sigourney Weaver, originally aired on Discovery Planet Green.. Carbon-the basis of life. Microbes. Life in extreme environments. Origin of life on earth. Origin of the atmosphere. Astrobiology.... Where do we find Carbon?. Present in all living things. Diamonds and graphite. CARBONATE EQUILIBRIACarbonates are arguably the most important dissolved component of soil solutions and in alkaline soilsthis statement is even less disputable. Implicit in this statement is the rel Alexandria Boehm . Professor of Civil & Environmental Engineering. Senior Fellow Woods Institute of the Environment. Stanford University. Bruce Steele, commercial sea urchin fisherman on ocean acidification:. AOSC 620. . Why do we care?. . Source of much food.. . Sink for much CO. 2. and acids.. Biodiversity.. . Great store and transport of heat.. . Source of water vapor.. Wallace & Hobbs . Chapt. Lecture 19. Water. Water is virtually omnipresent at the surface of the Earth.. Consequently, there is continual reaction between water and materials at the surface (rocks, soil, atmosphere, life).. As a consequence of these reactions, water is never pure (though . 20.3. Seafloor sediments. Ocean . floor is mantled with sediment. Sources. Turbidity . currents. Sediment . that slowly settles to the . bottom from . above. Thickness . varies. Thickest . in trenches – accumulations . Warming of ocean is three dimensional process. Historical trend has been rising sea levels. Thermal expansion of ocean also contributes significantly to sea level rise. Thermal expansion likely to persist for centuries. Prof. Jeffery Lang (EECS). Dr. Suchol Savagatrup. Ms. Vera . Schröder. Massachusetts Institute of Technology. MIT Sea Grant. November 29, 2016. Sensors for Measuring Carbon Dioxide, Bicarbonate, and pH in the Ocean. Ocean Acidification The Fundamental Chemistry Behind This Phenomenon Objectives Learning Goals Understand how atmospheric CO 2 affects seawater pH Explain the seawater carbonate chemistry reaction(s) carbonate rocks. . (. Metcarbonates. ). What is the Metacarbonates?. Metacarbonates. ,. . are metamorphosed calcareous (limestone and dolomite) rocks in which the carbonate component is predominant. Consistent shallow gradient from shoreline to . basin (some . may be distally . steepened), somewhat analogous to siliciclastic shelf. Highest Energy. Lowest Energy. Carbonate . Platforms. Low-gradient to flat, shallow, broad top with very steep slope.