User:Ericorphys73/sandbox/sandbox 1

learning
eclogite

A) http://en.wikipedia.org/wiki/Eclogite

B) The page gives a good general overview of what eclogite is and how it can be used in a geologic interpretation, especially concerning plate tectonics. The page also does a nice job of including links to related pages as well.

C) Since eclogite does have significant implications in solving geologic problems, the page could go into more detail with some of it's content concerning how eclogite study can be used in each case.

D) Successful written communication: Very concise and to the point. Good for a very general introduction page to eclogite. Improve-able: The "distribution" section seems to be a list of examples where eclogite is found rather than discussing the actual distribution of eclogite.

E) Successful visual communication: The page has several good pictures of what eclogite looks like. Improve-able: Some figures of eclogite formation within the earth would be useful so there is a visual aid for ultra high pressure metamorphism for example.

continental collision

A) http://en.wikipedia.org/wiki/Continental_collision

B) The page gives a brief definition of continental collision. It also mentions other geologic events that can happen at a site of continental collision, as well as geologic events that help drive the collision such as subduction zones.

C) It may be more efficient to combine the section titled "Far-field effects" with the "Orogeny and collapse" section.

D) Successful written communication: The introduction to the page is very strong and clear. Improve-able: The "Fossil collision zones" section might be better served by being more detailed about sutures and being renamed. The word "fossil" may confuse some people.

E) Successful visual communication: There is a very nice moving figure showing how mountain building can occur as a result of a reverse fault. Improve-able: A map showing large scale orogeny and a figure explaining a suture zone may be useful to a reader.

geology of the himalaya

A) http://en.wikipedia.org/wiki/Himalayan_orogeny

B) The page offers a comprehensive overview of the formation of the Himalaya. The page also discusses the tectonics of the Himalayan area as well.

C) Information about the mineralogy of Himalayan rocks would be useful for understanding the geologic history in terms of metamorphism and source rocks.

D) Successful written communication: The whole page has done a very good job of explaining the basics of the Himalayan formation. Improve-able: There could be more about the rock composition withing the Himalayas.

E) Successful visual communication: Three paleogeographic reconstructions throughout time showing the progression of the formation of the Himalayas. There is also a crude but concise figure showing the collision of India and Asia. Most of the figures are good visual aids. Improve-able: The figures are all on the margin of the page and are small. This makes it very difficult to see every figure clearly.

Proposal

The proposed topic of this Wikipedia page is the South Tibet Detachment (STD). This is an area of the Himalayan orogeny whose nature is still unclear. There have been many different models that attempt to explain the true structure of the STD. A more specific topic of this page will be to present the evidence for various STD models along with figures simplified from existing models from already published work, and work that will soon be published. This is important to audiences because the plate tectonics and structural geology is unique in the Himalayas. For the general audience, it will be a concise and easy to understand guide to the STD geometry. For more specialist audiences, this will over evidence for each model so that readers may draw their own conclusions. The page will begin with an explanation of what the STD is and why it is important to study. There will also be references to things that allow geologists to infer the age of deformation events such as eclogitization. The original figures in the page will be adaptations of figures showing the STD geometry from a research proposal by Dr. Alex Webb from the Department of Geology and Geophysics of Louisiana State University. The adaptations will attempt to simplify the figures in any way for the readers. The figures will show: a channel flow/denudation model, a wedge extrusion model, and a tectonic wedging model of the STD. There may also be a simplified geologic map of the area. These figures will allow people to see the different models as well as help them think critically about the evidence and possibilities for each.

LSU[[Louisiana State University