![]() | This article is written in American English, which has its own spelling conventions (color, defense, traveled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus. |
![]() | This ![]() It is of interest to the following WikiProjects: | ||||||||||
|
This pooopooo article seems to be over emphasizing siliciclastic rocks with very little aboung [[Wikipedia:Signaturt carbonates, evaporates, etc. Can this be fixed? please ignore these people they have know idea what they a talking about i have a PHD in the studies of roc ks Yes, yes it can. —Precedies|unsigned]] comment added by 86.136.82.199 ( talk) 13:07, 3 April 2011 (UTC)
What are some uses of sedimentary rocks??? there are no uses for sedimentry rock there are just a figment of your imagination
—Preceding unsigned comment added by 74.98.14.78 ( talk) 21:21, 25 October 2010 (UTC)
yes, it is a bit difficult to understand There are also other classifications of clastic and organic sedimentary rocks, which are not available here. Moreover the pictures are very deficient which create problem in understanding. made by , Kassidy Smith.
dear everyone,
i'm trying to write about shale and other sedimentary rocks and i just need a few websites or any info available about these sedimentary rocks. any help about where to go to for info would be greatly appreciated. please reply to madewann [at] hotmail [dot] com
cheers,
W. Mann —Preceding
unsigned comment added by
User:Madewann (
talk •
contribs)
this page isnt for asking for help on projects, unless the project in question is the page itself.--
58.107.30.145
08:00, 25 October 2007 (UTC)
Is clay really a sedementary rock as this article stated before? Isn't shale the sedementary rock type that consists of clays? http://csmres.jmu.edu/geollab/fichter/SedRx/SimpModl.html /Joe Hill —Preceding unsigned comment added by Joe hill ( talk • contribs) 10:34, 20 January 2007
you don't have anything about sedimentary rocks with layers in this article. —The preceding unsigned comment was added by 12.39.96.249 ( talk) 19:44, 20 January 2007 (UTC).
I miss information about terms like 'softlimestone' or 'hardlimestone'. I wonder if they can be considered as types of limestone —The preceding unsigned comment was added by 85.85.139.75 ( talk) 13:15, 12 March 2007 (UTC).
I'm removing the "List to prose" tag. Wikipedia:Embedded list presents examples of where lists are preferred to prose (!!!), and one of them is logical hierarchies. The bullet list in article Sedimentary presents a hierarchical taxonomy, similar to those used in biology. The alternative presentation would be a phylogram, but: that would be overkill for a simple hierarchy which at present is fairly simple; bullet lists are the most accessible way to present hierarchies, as ALT text in images has limited capabilties (and possibly length) while ASCII art (the most common way of showing phylograms in Wikipedia) is unintelligible to people with severe visual handicaps. Philcha 13:01, 31 August 2007 (UTC)
how come the names of sedimentary rocks formed by biogenic methods and precipitates arent listed in the beginning? i dont know them and i would like to find out what they are. 58.107.30.145 09:59, 22 October 2007 (UTC)
Most rocks that are sedimentary rocks are coquina,shale,sandstone,chalk,limestone,micrite limestone,coal,arkose,Quartz sandstone, graywacke,slitstone,and claystone —Preceding unsigned comment added by 69.154.160.104 ( talk) 23:42, 6 February 2008 (UTC)
Why do sedimentary rocks contain crystals? —Preceding unsigned comment added by 92.2.8.85 ( talk) 08:49, 8 June 2008 (UTC)
I made some edits to the intro, and chemical sedimentary rock. Just dropping a note in case anyone wants to comment on the changes. Awickert ( talk) 23:34, 26 November 2008 (UTC)
Do you think this chart would be proper for the page?
http://commons.wikimedia.org/wiki/File:Sedimentary_Rock_Chart.png
There is also one for igneous and metamorphic. Andrew Colvin ( talk) 00:13, 4 January 2010 (UTC)
The subdivision of sedimentary rocks into siliciclastic, organic, and chemical is problematic because many sedimentary rocks can form organically or inorganically (limestones, etc). I wonder if this article could be improved by including a brief discussion of the siliciclastic, organic, and chemical origins of sedimentary rocks (using content from the existing classification section) and then making a Types section that includes entries for:
Abandoning subdivisions based on formation in favor of subdivisions based on composition is the approach many sedimentary geology textbooks take and I think it would work well here. This approach also addresses many of the issues discussed below. Rygel, M.C. ( talk) 14:15, 4 October 2010 (UTC)
The physical weathering and chemical weathering sections under the clastic subheading are lengthy tangents that distract from the main focus of the article. Given the presence of a good weathering entry, I suggest deleting or drastically shortening these sections (perhaps some content could be moved to weathering). Rygel, M.C. ( talk) 14:18, 4 October 2010 (UTC)
Would there be any merit in combining the Footnotes and References section in this article? It seems that ~50% of the footnotes contain complete bibliographic information for the sources, the other 50% of the footnotes contain partial bibliographic information and specific page numbers within the sources (full bibliographic information is later provided in the References section). I personally think that the advantages of simplifying and merging the two sections outweighs the advantages of keeping specific page numbers, particularly since the footnotes typically refer to textbooks that contain an index. Does anyone have any thoughts or preferences on keeping vs. merging these sections? Rygel, M.C. ( talk) 17:20, 21 November 2010 (UTC)
![]() | This
edit request has been answered. Set the |answered= or |ans= parameter to no to reactivate your request. |
At the end of the paragraph:
The opposite of cross-bedding is parallel lamination, where all sedimentary layering is parallel.[26] With laminations, differences are generally caused by cyclic changes in the sediment supply, caused for example by seasonal changes in rainfall, temperature or biochemical activity. Laminae that represent seasonal changes (like tree rings) are called varves. Some rocks have no lamination at all, their structural character is called massive bedding.
Add a sentence: Any sedimentary rock composed of millimeter or finer scale layers can be named with the general term laminite.
Colin D Langford ( talk) 04:40, 20 February 2013 (UTC)
![]() | This
edit request has been answered. Set the |answered= or |ans= parameter to no to reactivate your request. |
change rock to a clickable link to the rock wikipedia 205.174.116.6 ( talk) 18:52, 30 January 2020 (UTC)
This article was the subject of a Wiki Education Foundation-supported course assignment, between 19 May 2022 and 6 June 2022. Further details are available
on the course page. Student editor(s):
Smit3316 (
article contribs).
— Assignment last updated by Shaethompson ( talk) 14:03, 2 June 2022 (UTC)
![]() | This
edit request has been answered. Set the |answered= or |ans= parameter to no to reactivate your request. |
I noticed that the section on chemical sedimentary rocks under Classification Based on Origin is somewhat lacking, and there’s some information I think should be added to it.
The section only contains information on the formation of chemical sedimentary rocks through the supersaturation and precipitation of minerals out of the solution, but chemical sedimentary rocks that are evaporates such as halite and anhydride are formed when water completely evaporates and leaves behind chemical sediments, and I believe that this should be added to the section.
Source: https://www.nps.gov/subjects/geology/sedimentary.htm 4thLawOfRobo ( talk) 16:36, 30 November 2022 (UTC)