When.com Web Search

  1. Ads

    related to: is obsidian in the mantle good for water treatment

Search results

  1. Results From The WOW.Com Content Network
  2. Geology applications of Fourier transform infrared spectroscopy

    en.wikipedia.org/wiki/Geology_applications_of...

    The most commonly investigated volatiles are water and carbon dioxide as they are the primary volatiles to drive volcanic and magmatic processes. [4] The absorbance of total water and molecular water is approximately 3450 cm-1 and 1630 cm-1. [2] The peak height of the absorption bands for CO 2 and CO 3 2− are 2350 cm −1 and 1430 cm −1 ...

  3. Apache tears - Wikipedia

    en.wikipedia.org/wiki/Apache_tears

    Excessive water present during cooling and quenching of rhyolitic lava causes obsidian to hydrate (i.e., water entering the obsidian glass converts it to perlite). Where perlite is incompletely hydrated, fresh obsidian cores remain as pebbles of marekanite, or Apache tears; this origin has been occasionally described in the geologic literature ...

  4. Obsidian use in Mesoamerica - Wikipedia

    en.wikipedia.org/wiki/Obsidian_use_in_Mesoamerica

    Obsidian projectile point.. Obsidian is a naturally formed volcanic glass that was an important part of the material culture of Pre-Columbian Mesoamerica.Obsidian was a highly integrated part of daily and ritual life, and its widespread and varied use may be a significant contributor to Mesoamerica's lack of metallurgy.

  5. Scientists Drilled So Deep Into the Center of the Earth, They ...

    www.aol.com/scientists-drilled-deep-center-earth...

    To understand the mantle—the largest layer of Earth’s rocky body—scientists drill deep cores out of the Earth. In May of 2023, scientists drilled the deepest core yet and recovered ...

  6. Obsidian - Wikipedia

    en.wikipedia.org/wiki/Obsidian

    The source of obsidian for cultures inhabiting the territory of and around Greece was the island of Milos; the Starčevo–Körös–Criș culture obtained obsidian from sources in Hungary and Slovakia, while the Cardium-Impresso cultural complex acquired obsidian from the island outcrops of the central Mediterranean.

  7. Obsidian hydration dating - Wikipedia

    en.wikipedia.org/wiki/Obsidian_hydration_dating

    Obsidian hydration dating (OHD) is a geochemical method of determining age in either absolute or relative terms of an artifact made of obsidian.. Obsidian is a volcanic glass that was used by prehistoric people as a raw material in the manufacture of stone tools such as projectile points, knives, or other cutting tools through knapping, or breaking off pieces in a controlled manner, such as ...

  1. Ad

    related to: is obsidian in the mantle good for water treatment