User:ObliqueFault/Choose an Article

Article Selection
Please list articles that you're considering for your Wikipedia assignment below. Begin to critique these articles and find relevant sources.

Option 1

 * Article title:  Carbonate Rocks

LEAD SECTION The fact that carbonates are predominantly formed in marine environments (~ 90%) is absent. Also that through geological time, there have been calcalitic and aragonitic seas. Another large omission to this section is that carbonates form both abiotic and biotically.

BODY SECTION Suggested headings for the body 1. How carbonate rocks form [abiotically, biotically-induced(mircobial, ppt) and biotically-controlled (skeletal)] 2. How these rocks are classified(Dunham, Folk) 3. Carbonate rock-forming geological structures (sinkhole, karst, reefs, shoals) 4. Carbonate rock alternation(meta-sedimentary, metamorphic and dissolution) 5. Carbonates as a Resource (Hydrocarbons, et al)

REFERENCES - Currently there are no references.

I would like to edit this section by adding the headings and the missing items described above. I would also like to source reference mater to provide the missing citations. Much of this reference material could come from the 2 sources below:

1. Origin of Carbonate Sedimentary Rocks,   Noel P. James and Brian Jones, Wiley, 2016

2. Sedimentary Rocks in the Field: A colour guide,    Dorrik A. V. Stow, CRC Press (no year given)

3. Shallow-marine carbonate facies and facies models    ME Tucker - Geological Society, London, Special Publications, 1985 - sp.lyellcollection.org



Option 3

 * Article title: Bowie Hotspot

LEAD SECTION:[edit]
The definition for a hotspot is nicely linked to the wiki 'hotspot' and 'Kodiak-Bowie Seamount chain' page. However there needs to be some background of how a hotspot relates to volcanism and to basalt lava before jumping to these topics. A big omission in this section is that the Bowie is the only active volcano of an extinct seamount chain. In this section should also be a brief description of the areal extent and geographic location.

BODY SECTION:[edit]
2 Headings are suggested for the body: 1. FORMATION → Effusive Eruption → content of 3rd paragraph 2. SEAMOUNTS → for content of 4th and 5th paragraphs.

REFERENCES:[edit]
[2] Full citation should be given for "NOAA Ocean Explorer: Gulf of Alaska 2004". Retrieved 2007-09-02. as it is not obvious where on this website, the material cited is.

Most of the material is not cited.

I would like to re-write the Lead section to include the omissions described above. I would like to add the 2 headings listed above and source citations for the uncited sentences of the original content.

Option 3

 * Article title: A-Type Granites
 * LEAD: - Granite needs to be distinguished from granitoid. ‘Alphabet’ classification was defined for granitoids, not granites. There is no define for granite. A link to the wiki granite page would solve this. - A description of what this sub-type of A is based on. The 4 other alphabet are listed which provides a reference to compare the attributes of A-types’ occurrence, geochemistry and sub-types to. - The ‘alphabet’ classification of granite as aggregate should be credited to Chappel & White (1974), White (1979) and Loiselle & Wones (1979) -
 * BODY: Adding Headings: Occurrence, Geochemistry and A-type Sub-types the content of the 2nd, 3rd, and 4th paragraphs would give the article more structure.
 * REFERENCES: Reference [1]: Nelson Eby’s web page is a U of Mass, Earth Science Prof, and hence a reliable source but none of the lines credited to this citation contain material supporting the citation. It is possible the wiki author may have been mental linking material from a lecture of Prof. Eby. The content is valid however all cited sentences accredited to this source need to be re-cited. Much of this material comes from the 3 original sources:
 * 1. Chappell and White (1974) reprinted in - Chappell, B. W., White, A. J. R., 2001. Two contrasting granite types: 25 years later. Australian Journal of Earth Sciences 48, 489-499.
 * 2. Loiselle, M. C., Wones, D. R., 1979. Characteristics and origin of anorogenic granites. Geological Society of America Abstracts with Programs 11, no. 7, 468.
 * 3. White, A. J. R., 1979. Sources of granite magmas. Geological Society of America Abstracts with Programs 11, no. 7, 539.
 * As of today's date, I have only added the link to the wiki GRANITE web page but I would like to find the citations for the existing content and add the headings suggested above. Please let me know what you think of these edits as I want to respect earlier editors.
 * As of today's date, I have only added the link to the wiki GRANITE web page but I would like to find the citations for the existing content and add the headings suggested above. Please let me know what you think of these edits as I want to respect earlier editors.