User:Jpez315/sandbox

You made a good addition to the Thompson page for your week 3 assignment. The Wealander is I believe still used but not very often. It is the yellow boat on a trailer that is often on the dock. William Wilcock (talk) 00:12, 17 April 2017 (UTC)

Important information on citing sources: all information must have a source and source must be reliable. You can add the footnotes either through code or through the user interface. Jpez315 (talk) 00:40, 8 April 2017 (UTC)

When reading the Plate Tectonics article, I noticed that there are actually many facts that are not cited where they came from. Jpez315 (talk) 00:42, 8 April 2017 (UTC)

The Driving forces related to Earth rotation section in the Plate Tectonics article has been in need of citations since November 2015, that is almost two years old. This article needs serious updating. Jpez315 (talk) 00:50, 8 April 2017 (UTC)

I know I already said this but the Plate Tectonics article seriously needs more citations!!!! Jpez315 (talk) 01:11, 8 April 2017 (UTC)

The first 10 sources aren't even cited correctly.... Jpez315 (talk) 01:15, 8 April 2017 (UTC)

Wait, why are the sources under notes and linked below to the actual citations, footnotes are not written like that. Confused, must watch tutorial again. Jpez315 (talk) 01:17, 8 April 2017 (UTC)

Ok. So the article is C class. Makes sense, there are many parts that are not cited at all or not cited properly. Jpez315 (talk) 01:20, 8 April 2017 (UTC)

The transform fault article also needs more work. There desperately needs to be more citations and some sections need a lot more description especially in the section on the difference between transform and transcurrent faults. Jpez315 (talk) 01:31, 8 April 2017 (UTC)

You have some good points about the two articles. I do not quite understand the motivation for the reference style which has citations linking to notes that then link to the actual references but that appears to be one option in Wikipedia. Also I do not know why so much prominence is given to a section on "Driving forces related to Earth rotation" since that is pretty obscure compared with the rest of the article on Plate Tectonics. You focused on citations and did not consider some of the questions in the assignment (e.g., illustrations, talk page, neutrality, relevance of all material). I am not a Wikipedia aficionado but I do not think you need to sign comments in your own sandbox. William Wilcock (talk) 05:58, 10 April 2017 (UTC)

I am going to be working on the Kermadec-Tonga Subduction Zone. This article does not really have anything written at this time. I would like to add a picture of a map indicating where the subduction zone is. I would also like to add more detailed information on the importance of the fault in global plate tectonics. Jpez315 (talk) 01:27, 22 April 2017 (UTC)

Potential Bibliography:

Baker, E. T., Massoth, G. J., Lupton, J. E., Wright, I. C., De Ronde, C E J, Baker, E T, Massoth, G J, Lupton, J E, Wright, I C, Sparks, R J, Bannister, S C, Reyners, M E, Walker, S L, Greene, R R, Ishibashi, J, Faure, K, Resing, J A, and Lebon, G T. "Submarine Hydrothermal Activity along the Mid-Kermadec Arc, New Zealand: Large-scale Effects on Venting." Geochemistry, Geophysics, Geosystems G³. 8.7 (2007): N/a. Web.

Contreras-Reyes, E., I. Grevemeyer, A. B. Watts, E. R. Flueh, C. Peirce, S. Moeller, and C. Papenberg (2011), Deep seismic structure of the Tonga subduction zone: Implications for mantle hydration, tectonic erosion, and arc magmatism, J. Geophys. Res., 116, B10103, doi:10.1029/2011JB008434.

Pare, Pier-Alexandre. "Kermadec, Tonga, and Niuao'ou." Southwest Pacific Plates, swpacificplates.weebly.com/kermadec-tonga--niuafoou-plates.html. Accessed 21 Apr. 2017.

Worthington, TJ, Stoffers, P, Garbe-Schonberg, D, Wright, I, Haase, Karsten M, Worthington, Tim J, Stoffers, Peter, Garbe-Schönberg, Dieter, and Wright, Ian. "Mantle Dynamics, Element Recycling, and Magma Genesis beneath the Kermadec Arc-Havre Trough." Geochemistry, Geophysics, Geosystems G³. 3.11 (2002): 1-22. Web.

Jpez315 (talk) 01:35, 22 April 2017 (UTC)

You have a good selection of articles here. I found an early paper, Collot, J. Y., and B. Davy (1998), Forearc structures and tectonic regimes at the oblique subduction zone between the Hikurangi Plateau and the southern Kermadec margin, J. Geophys. Res., 103, 623–650. that may be useful for developing background and for doing citation searches through GeoRef or Web of Science Erik 04:16, 24 April 2017 (UTC)

I found a good animation http://www.whoi.edu/page.do?pid=95816&cl=95813&tid=5122 and several popular articles http://www.stuff.co.nz/environment/72528515/kermadec-sanctuary-has-worlds-second-deepest-trench-30-underwater-volcanoes Definitely search with Georef for peer reviewed articles William Wilcock (talk) 05:24, 24 April 2017 (UTC)

The article itself does not have much information. So, I basically need to start from the beginning. The article should have: a short history of the subduction zone and then go into the important facts about the subduction zone today. Some of these main facts is that the trench is one of the deepest in the world (must do more research as there is discrepancy on if it is the fifth deepest or the second deepest). The volcanic arc must also be mentioned as it is one of the largest in the world. I would also like to talk about the mechanisms of the subduction zone and how this particular subduction zone works. There should also be mention about the Kermadec sanctuary that is near the fault, and describe why the sanctuary was created (talk about the important migration paths and the creatures protected). Jpez315 (talk) 05:10, 29 April 2017 (UTC)

Kermadec-Tonga Subduction Zone

Kermadec and Tonga Plates

The Kermadec-Tonga subduction zone is a convergent plate boundary which stretches from the North Island of New Zealand northward, and includes the Hikurangi Trough, the Kermadec Trench and the Tonga Trench. The beginning of the creation of the Kermadec and Tonga Plates started about 4-5 million years ago. Today, the Eastern boundary of the Tonga Plate is one of the fastest subduction zones with a rate up to 24 cm/yr. The trench formed between the Kermadec-Tonga and Pacific Plates is also home to the second deepest trench in the world at about 10,800m, as well as, the longest chain of submerged volcanoes.

Geological Setting

The Kermadec-Tonga subduction zone is a convergent plate boundary, which stretches from the Southwest of the Kermadec Plate (Northeast of New Zealand) to the Northwest of the Tonga Plate with the Pacific Plate being subducted under both the Kermadec and Tonga Plates. The Kermadec and Tonga Plates are micro oceanic plates bounded by the Australian and Pacific Plates, as well as the Niuafo’ou Plate (for the Tonga Plate) in the Pacific Ocean. The Kermadec Plate begins at Northeastern part of New Zealand and stretches to the Southern tip of the Tonga Plate, and is bounded by the Australian Plate to the West and the Pacific Plate to the East. The Tonga Plate begins 2500km NNE of New Zealand and stretches Northward, bounded by the Australian Plate to the West and the Pacific Plate to the East, until the plate ends bounded by the Niuafo’ou Plate to the Northwest and the Pacific Plate to the Northeast.

Subduction

The southern end of the subduction zone transitions to a right lateral-moving transform fault south of the North Island called the Alpine Fault. The subduction seems to be driven primarily by the excess weight of the cold/old oceanic plate entering the hot mantle of the Earth.

Trench

The Eastern boundaries of the Tonga and Kermadec Plate create the subduction zone of the Pacific Plate. This region forms about a 2,000km trench. The Eastern boundary of the Tonga Plate is one of the fastest subduction zones with a rate of up to 24cm/yr . It is also the second deepest trench in the world at about 10,800m, with the deepest point, Horizon Deep, being the deepest point in the Southern Hemisphere and the second deepest point in the world, after the Challenger Deep in the Mariana Trench. The Eastern boundary of the Kermadec Plate is also the Kermadec Trench, which is the fifth deepest trench in the world at about 10,000m.

Creation

The Tonga and Kermadec Plates were created about 4-5 Ma ago. Before their creation, the Pacific plate was subducting under the Australian, producing the Lau-Colville Ridge (now extinct). About 6 Ma ago, this region underwent crustal extension and through a complicated series of different spreading centers, ultimately leading to the separation of the Pacific and Australian Plate and the creation of what is now Tonga and Kermadec Plate. The Tonga and Kermadec Plates separated as the Northern portion of the plate was growing much faster (96mm/year) than the Southern portion (39mm/year), eventually causing a transform fault to be created between them. Just as this phenomenon created the Tonga and Kermadec Plates so many years ago, it was also the cause of the creation of the Niuafo’ou microplate, to the Northwest of the Tonga Plate, as the Tonga’s Northern surface is still growing much faster than its Southern counterpart.

Kermadec Sanctuary

With the largest underwater volcano chain, this area is among one of the most geologically diverse areas in the world. Announced in 2015 by Prime Minister of New Zealand, John Key, at the United Nations in New York, the Kermadec Sanctuary is proposed to be off limits to aquaculture, fishing, and mining. The sanctuary is 620,000 square kilometers, making it the world's largest and most significant fully protected areas. The intention was to have the sanctuary in place, enacted by Parliament in November 2016. In September 2016, the enactment of the Kermadec Sanctuary was delayed due to failed negotiations over the Maori people's rights. As of June 2017, these issues have still not been resolved.

References

Jpez315 (talk) 15:59, 17 May 2017 (UTC)