Skip to main content

glass shards

glass shards Angular, glassy particles, less than 2 mm in size, formed either by the explosive magmatic fragmentation of pumice vesicle walls, or by the chilling and brittle fragmentation of magma when it comes into contact with groundwater or surface water. Magmatically formed shards commonly have ‘Y’ or cuspate shapes and may deform plastically and weld together if they are hot enough when deposited and the overburden load is sufficient. Shards formed by hydrovolcanic processes have a variety of shapes, ranging from those with curviplanar surfaces and low vesicularity to those with smooth, fluid-form surfaces and moderate vesicularity.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"glass shards." A Dictionary of Earth Sciences. . Encyclopedia.com. 11 Sep. 2018 <http://www.encyclopedia.com>.

"glass shards." A Dictionary of Earth Sciences. . Encyclopedia.com. (September 11, 2018). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/glass-shards

"glass shards." A Dictionary of Earth Sciences. . Retrieved September 11, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/glass-shards

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.