lect1 - GG325 - GEOCHEMISTRY week 1: lecture 1 Fundamentals...

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1 GG325 L1, F2009 Email: krubin@hawaii.edu Office: POST 606E; Office hrs: up to class. Phone: x68973,x66836 (lab) Fundamentals of Geochemistry GG325 Instructor: Prof. Ken Rubin http://www.soest.hawaii.edu/krubin/gg325.html GG325 L1, F2009 Grading: on a curve. Midterm exam (25%) problem sets (30%) class journal (20%) final exam (25%) Class participation/attendance is not mandatory, but is taken into consideration in borderline grading situations. Please turn homework assignments in on time. Grading penalties of 10% per day will apply unless a valid reason for a late assignment is discussed with me ahead of time. grading policy…. . Text: Reading assignments from various books are provided to you FOR FREE (these will be in a folder outside of my office). GG325 -- GEOCHEMISTRY week 1 : lecture 1
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2 GG325 L1, F2009 Introductory Remarks This semester we will use Chemistry to understand: 1. the natural workings of the Earth: natural distributions of chemicals in global and local environments. 2. the history of the Earth: The birth of matter in our solar nebula, formation of the solar system and early Earth history. 3. perturbations caused by humans: chemical distributions in anthropogenically "perturbed" systems (using chemical fundamentals to explain the condition of the environment there). GG325 L1, F2009 Chemistry in a beaker is different than chemistry in the environment. The latter is more complex, so we make approximations and adaptations to the "standard rules". GG325 -- GEOCHEMISTRY week 1 : lecture 1
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3 GG325 L1, F2009 What is Geochemistry? Geochemistry is the study of the sources and fates of chemical species in natural environments. # Geochemistry is a set of tools for helping to understand the Earth; these tools are based upon chemical, instead of the physical observations of the geologist. Understanding something about the chemistry of matter and the parameters that affect it help us to explain how a natural environment functions. GG325 L1, F2009 What is Environmental Geochemistry? It is the study of the chemical species in natural environments and the effects of technology upon them. Environmental Geochemistry involves the comparison of natural systems with those affected by human activities. Humans can alter the environment physically: 3 i.e., they can cause excess erosion that silts a river, reducing water clarity and light transmission, affecting the temperature and chemistry (and perhaps biology) of the riverine system. Humans can also alter the environment chemically: r i.e., they can add materials to an environment which changes the way it functions by affecting either its biota or its natural chemical condition (e.g., pH). GG325 -- GEOCHEMISTRY week 1 : lecture 1
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4 GG325 L1, F2009 This class will be focus on how natural environments work, but it will also consider if and how aspect(s) have somehow been altered by human activity. GG325 L1, F2009
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This note was uploaded on 09/27/2010 for the course GG GG325 taught by Professor Ronjacobs during the Winter '10 term at Hawaii.

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lect1 - GG325 - GEOCHEMISTRY week 1: lecture 1 Fundamentals...

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