User:Barbkned/sandbox

Article Evaluation: The Carbon Cycle.
In the section titled "Human Influence," there is statement that says the largest human impact on the carbon cycle is through our use of fossil fuels, but the article does not provide evidence for this. While this may be recognized as general knowledge in this day and age, there should still be citations provided. Additionally, there are statements in the Biodiversity loss portion of this section which are not cited as well, which comes across as opinion.

The article is not biased, but I do think the article could benefit from better representative images and additional citations.

Citation links appear to work, but I do notice a citation from the New York Times. Upon reading this article, I saw it was just a review of a report put out by the World Meteorological Organization. I think it may be better to cite the report directly, rather than a news article reporting on it.

In the talk section, there are discussions on better citing of the human impacts section as I had mentioned. Additionally, there is a comment on the section on "biodiversity loss" being written as a persuasive opinion piece.

The article is rated as a "B level" article, and is a "level-5 vital article" as well.

Article Selection
Article 1 Review: The Iron Cycle


 * .The article is written neutrally
 * .The article only has two citations, but each come from reliable sources.
 * .The page needs in depth descriptions of the cycle as it moves through each of it's "phases," be it land, sky and sea.
 * The page also needs more information on why the cycle is so critical in general.
 * .The article is part of "Wikiproject Geology," but is currently only a stub and has no conversations in the talk section currently.
 * Recommended sources to help improve this article:
 * Archer, D. E., & Johnson, K. (2000). A model of the iron cycle in the ocean. Global biogeochemical cycles, 14(1), 269-279.
 * Boyd, P. W., & Ellwood, M. J. (2010). The biogeochemical cycle of iron in the ocean. Nature Geoscience, 3(10), 675.
 * Tagliabue, A., Bowie, A. R., Boyd, P. W., Buck, K. N., Johnson, K. S., & Saito, M. A. (2017). The integral role of iron in ocean biogeochemistry. Nature, 543(7643), 51.

Article 2 Review: Redox Gradient


 * .This article has no sources.
 * .This article does not go into the detailed specifics of what redox gradients are and how they are important in a variety of ecosystems.
 * Recommended sources to help improve this article:
 * Boomer, K. M. B., & Bedford, B. L. (2008). Groundwater-induced redox-gradients control soil properties and phosphorus availability across four headwater wetlands, New York, USA. Biogeochemistry, 90(3), 259-274.
 * Vink, J. P. (2002). Measurement of heavy metal speciation over redox gradients in natural water− sediment interfaces and implications for uptake by benthic organisms. Environmental science & technology, 36(23), 5130-5138.
 * Russell, M. J., & Kanik, I. (2010). Why does life start, what does it do, where will it be, and how might we find it. Journal of Cosmology, 5, 1008-103



Article 3 Review: Terrigenous sediment


 * .This article only has three sources
 * .It gives a very brief description of how terrigenous sediment attributes the salt in the ocean, but not alot of specifics.
 * .I would provide a more in depth description as well as add more sources.
 * Recommended sources to help improve this article:
 * James, R. H., Allen, D. E., & Seyfried Jr, W. E. (2003). An experimental study of alteration of oceanic crust and terrigenous sediments at moderate temperatures (51 to 350 C): Insights as to chemical processes in near-shore ridge-flank hydrothermal systems. Geochimica et Cosmochimica Acta, 67(4), 681-691.
 * Gaullier, V., & Vendeville, B. C. (2005). Salt tectonics driven by sediment progradation: Part II—Radial spreading of sedimentary lobes prograding above salt. AAPG bulletin, 89(8), 1081-1089

Notes on Sources

 * It seems like there may be some contention on the validity of the rain ratio in modern times. It may be interesting to look at a variety of arguments and then provide both on the wiki page (from a non-biased stance of course).
 * This article discusses the preservation of Calcium Carbonate in deep sea sediments, and that the rain ratio may be "buffered" against activity happening in surface waters.
 * This article argues confidently that the rain ratio has a strong role in the preservation of Calcium Carbonate in deep sea sediments.

Week Four: (Drafting a new article - Rain Ratio)

 * The rain ratio can be modeled by four parameters, including both biological and alkalinity pumps