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  2. Peters four-step chemistry - Wikipedia

    en.wikipedia.org/wiki/Peters_four-step_chemistry

    Peters four-step chemistry is a systematically reduced mechanism for methane combustion, named after Norbert Peters, who derived it in 1985. [ 1 ] [ 2 ] [ 3 ] The mechanism reads as [ 4 ]

  3. List of impact structures on Earth - Wikipedia

    en.wikipedia.org/wiki/List_of_impact_structures...

    The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2] However, there is some uncertainty regarding its origins [3] and age, with some sources giving it as < 10 ka [2] [4] while the EID gives a broader < 100 ka. [3]

  4. BP Structure - Wikipedia

    en.wikipedia.org/wiki/BP_Structure

    The BP Structure, also known as Gebel Dalma, is an exposed impact crater in Libya. It is so called because it was identified by a BP (then British Petroleum) geological survey team. [1] French et al. state that the BP Structure and the larger Oasis crater, about 88 km (55 mi) to the south, were probably simultaneous impacts. [2]

  5. Stunning photos taken from inside a large, mysteriously ... - AOL

    www.aol.com/article/2014/11/13/stunning-photos...

    By RYAN GORMAN Scientists have rappelled down into a massive crater that formed recently in Siberia – and have shared staggering new images from inside. Pictures shared with AOL News by the ...

  6. Complex crater - Wikipedia

    en.wikipedia.org/wiki/Complex_crater

    A central-peak crater is the most basic form of complex crater. A central-peak crater can have a tightly spaced, ring-like arrangement of peaks, thus be a peak ring crater, though the peak is often single. [3] Central-peak craters can occur in impact craters via meteorites. An Earthly example is Mistastin crater, in Canada. [1]

  7. State of matter - Wikipedia

    en.wikipedia.org/wiki/State_of_matter

    The term phase is sometimes used as a synonym for state of matter, but it is possible for a single compound to form different phases that are in the same state of matter. For example, ice is the solid state of water, but there are multiple phases of ice with different crystal structures , which are formed at different pressures and temperatures.

  8. Gas emission crater - Wikipedia

    en.wikipedia.org/wiki/Gas_emission_crater

    The Yamal crater [] — Top: 2015, bottom: heaving mound and the crater formed after the explosion. A gas emissions crater or GEC is a crater that is left by an explosion that is believed to be caused by an overheated buildup of gas stuck below a layer of permafrost. [1]

  9. List of possible impact structures on Earth - Wikipedia

    en.wikipedia.org/wiki/List_of_possible_impact...

    [340] [341] [342] However, the source of the young (less than a million years old) and enormous Australasian strewnfield (c. 790 ka) is suggested to be a crater about 100 km (62 mi) across somewhere in Indochina, [343] [344] with Hartung and Koeberl (1994) proposing the elongated 100 km × 35 km (62 mi × 22 mi) Tonlé Sap lake in Cambodia ...