User:Sophiaaslam/sandbox

Article Evaluation:

Content:

The content in the Wikipedia page "Chile Triple Junction" is mostly relevant to its physical features, formation, and geography. However the final paragraph of the article is slightly confusing, as it includes information about a different peninsula. Addition of further in depth information would add to the overall impact of information for the article, and benefit the viewer of the article further. Some information that could be added includes more mathematical data and measurements such as depth. I don't believe the information in this article is out of date, as it was last updated a couple of months ago. The scientific information provided is presented clearly without jargon, but more information could be provided to improve the article overall. The article has many links to other Wikipedia articles for related topics.

Tone:

The article carries a neutral tone, and doesn't carry any claims heavily biased towards a certain position. The article has three citations but could use more in order to broaden the different types of information presented.

Sources:

The sources provided by the article work, and support the claims made by the article. However, the facts presented in the beginning of the article are not referenced with sources, but the facts provided in the second paragraph are backed with appropriate references. The sources are neutral and come from a scientific journal about tectonics of the Southern Chile Trench, articles, and websites.

Talk page:

The talk page of the "Chile Triple Junction" article doesn't have user comments but it says that the article is currently the subject of a Wiki Education Foundation-supported course assignment and is apart of the WikiProject Geology, which is an attempt at creating informative geology resource. The article has been rated stub-class on the project's quality scale and as mid-importance on the importance scale.

Talk page addition: (posted here: Talk:Chile Triple Junction)

Hello, my name is Sophia Aslam and I will be editing and adjusting this article for a class project. After reviewing the article, I have concluded that the article needs more scholarly sources in order to provide better information. The sources provided were unbiased, however, more scientific and data oriented information would be better for viewers. If you have any idea on where to find more sources and information please let me know ~Sophia Aslam

1. Lead Section
The Chile Triple Junction is located at the south-eastern edge of the South American forearc, adjacent to the Pliocene-aged Taitao ophiolite onshore, and is where three plates meet: The South American Plate, the Nazca Plate, and the Antarctic Plate.

2. Article
Subduction accretion is an important process that leads to mountain building and the growth of continents, but it is also associated with the destruction of forearc material. The impact of topographic features, such as topographic features of mountain ranges and faulting, is one important mechanism. An impact between a spreading ridge and a continental forearc can result in a thermal pulse within the forearc. This thermal pulse can be quantified using apatite fission track data and the thermal maturity of organic carbon in the forearc sediment. Geophysical, structural, sedimentological and paleontological data can be used to detect non-steady-state thermal conditions in the forearc. These data can be used to model along-strike changes from subduction accretion to subduction erosion.

The triple junction of the Chile Ridge, the Chile Trench and the Antarctic Plate collided 14 Ma ago near the latitude of Tierra del Fuego. Since then it has migrated north, with the actual triple junction now located at 46°12'S. The South American plate is moving away from the Nazca plate and moving in a direction to the north of the Chile ridge spreading center, and the Nazca plate is subducting under the South American plate at a rate of about 80-90 mm/a north of the triple junction. The continental basement of southern Chile is mainly formed of metasedimentary and metavolcanic rocks of Paleozoic age intruded by Cretaceous and Tertiary, acidic, I-type plutonic rocks of the Patagonian Batholith. The collision zone between the Chile Rise and the Southern Chile continental forearc is interrupted by the Taitao Ridge and is interrupted by the NNW trending normal faults. The trench between the Chile Rise and the Southern Chile continental forearc is interrupted by the deep submarine canyon. Based of geological data, geophysical reflection seismic data from the collision zone of the Chile Trench reveals large differences in the structure of the overriding forearc.