Explain to the interested non-petrologist what Anorthosite is, how it formed, where in the world it is found, what its plate tectonic association is.

This is a scientific paper, so you must use peer reviewed scientific journals for sources and geochimica style structure. Thin section refers to studying rocks under microscope. The rock is called \”Anorthosite\”.


1. Geologic context. This essay, about 2000 words, will explain to the interested non-petrologist what Anorthosite is, how it formed, where in the world it is found, what its plate tectonic association is. Try to see as much of the universe as possible in a single thin section. The information will be referenced to the peer reviewed literature (see below).

2. Style: Use the style of citation and bibliography from Geochimica et Cosmochimica Acta, the exact description can be found in the Guide to Authors on their web site:
http://gca.wustl.edu/information/manform.html. Use a standard scientific style. Avoid the first person and the second person (e.g. The topic of my paper is… and from this you can see), do not use flowery style or excess verbiage to make space, avoid the passive voice. This is not journalism so avoid the scientists discovered type of writing. Simple declarative sentences like you find in literature articles are what I want.

3. Sources: This paper will use the peer reviewed literature only. There will be no internet references, no textbook references, no J. Snow said so references. You may use the internet to inform yourself generally about your rock (assuming you have identified it correctly). Two scientific databases encompass the peer reviewed literature: Georef and the Web of Science. They are available through the library. If its in there, its allowed as a source, otherwise not. You must use both to explore the literature regarding your rock. There is no upper limit on the number of references you may use, but please cite only work that you actually use. The minimum will typically be 5-10 refs.

4. Literature Search: Use Georef and Web of Science to find a selection of the most recent and the most highly cited papers that reference your rock type, pick one from each category and explain what the two papers say. Typically, recent papers will be available online through the library proxy server, sometimes the older, better-cited literature will not. Read the papers and their references and use the literature until you understand both papers and give a short summary. Once again, pay attention to proper referencing of what you write.

5. Non-scientific aspects: Your discussion should extend to historical names for this rock type, who discovered it, what it was named for, where the type locality is, whether it was involved in any scientific controversies, associated with interesting ores, and so forth. Don\’t go overboard.

6. Figures. You may use figures to illustrate your text with the following limitations: A) Every figure used must be numbered and mentioned by name in the text, e.g.: Figure 2 shows…. B) Every figure must have a caption stating briefly what is shown and giving the source unless its e.g. a photomicrograph you took yourself. Figures must be legible. Please do not blindly copy huge uncompressed image files into your paper, I need to be able to read it.

7.) Outline: The outline for your paper is:
-Title, author, date, Abstract (200-300 words)
-Geologic Context (1-2 pages single spaced 12 pt)
-Variation in composition Worldwide occurrence Geologic association
-Literature Search (