Talk:Conglomerate (geology)

Earth and Space Science Shelbi Ritsick Conglomerate pd. 2

Conglomerate rocks are sedimentary rocks that form from the cementing of rounded cobble and pebble sized rock fragments. Conglomerate is made up of large sediments like sand and pebbles. Conglomerate is formed by river movement or wave action. The sediments of a conglomerate rock are so large that they can’t be held together by just pressure but also cemented by dissolved minerals. The dissolved minerals used to fill the spaces to form conglomerate are silica, calcite, or iron oxides. Conglomerate is sedimentary rock consisting of subangular clasts. There are two varieties of conglomerate, defined by their texture, paraconglomerate and orthoconglomerate. Paraconglomerate is one of two varieties of conglomerate rock. Paraconglomerate is defined by texture consisting of a matrix supported rock that consists of at least 15% sand sized grains, the rest being larger grains of varying sizes. Orthoconglomerate is defined by texture. Orthoconglomerate is a grain supported rock that consists primarily of gravel sized grains and less than 15% matrix grains. If matrix was to be removed from rock types such as paraconglomerate and orthoconglomerate the rock would collapse because the larger grains are supported by the matrix, and without it there is nothing to hold the grains together. A place where you would be able to see the beautiful conglomerate up close is near the town of Crestone, Colorado at the foot of the Sangre de Christo Range in Colorado's San Luis Valley. The Crestone Conglomerate is a metamorphic rock that consists of tiny to quite large rocks that appear to have been tumbled in an ancient river. Some of the rocks have hues of red and green. Another place where you would be able to find conglomerate would be in the northern territories of Austrailia. One other name conglomerate can be called is fan glomerate, but only if it has been formed deep within desert environments. After metamorphism, metaconglomerate is formed from conglomerate

formation conditions of conglomerate are not in the article

when they should be. --58.107.30.145 08:06, 25 October 2007 (UTC)

File:DebrisFlowDepositRestingSpringsPass.JPG

The image of the debris flow from California looks much more like a breccia or even a megabreccia due to the angularity of clasts, and probably should be moved to one or both of those pages. Jim Stuby (talk) 21:35, 5 May 2010 (UTC)

The rock is a breccia (type) produced through the process of a debris flow. I'll move it since in this article a breccia is not considered a conglomerate.Wilson44691 (talk) 21:43, 5 May 2010 (UTC)

Thanks. Great picture though. Jim Stuby (talk) 01:53, 6 May 2010 (UTC)

Examples section

There is no obvious rationale for the examples included, in fact do we need such a section? Mikenorton (talk) 14:39, 30 October 2015 (UTC)

I belive that such section is necessary, however it shoul include world famous localities, for example som oldest Archan/Proterozoic conglomerates if exist; famous conglomerates of Witwatersrand Group (known for abnormal gold occurence), some examples of good petroleum reservoirs...--Pelex (talk) 15:42, 30 October 2015 (UTC)

External links modified (January 2018)

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Why does "nagelfluh" redirect here?

Not mentioned in article. Equinox ◑ 14:39, 11 March 2024 (UTC)

Nagelfluh is a type of conglomerate found in the Nagelfluhkette. Either it should be added as an example or deleted. Mikenorton (talk) 15:02, 11 March 2024 (UTC)