When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Himalayas - Wikipedia

    en.wikipedia.org/wiki/Himalayas

    Despite its greater size, the Himalayas does not form a water divide across its span because of the multiple river systems that cut across the range. While the mountains were formed gradually, the rivers concurrently cut across deeper gorges ranging from 1,500–5,000 m (4,900–16,400 ft) in depth and 10–50 km (6.2–31.1 mi) in width.

  3. Geology of the Himalayas - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Himalayas

    The Tethys Himalaya is an approximately 100-km-wide synclinorium formed by strongly folded and imbricated, weakly metamorphosed sedimentary series. Several nappes, termed the "North Himalayan Nappes", [18] have also been described within this unit.

  4. List of first ascents of mountain summits - Wikipedia

    en.wikipedia.org/wiki/List_of_first_ascents_of...

    Himalayas: Herbert Tichy, Sepp Jöchler and Pasang Dawa Lama [167] 30 Oct 1954: Chomo Lonzo: 7804: Himalayas: Lionel Terray and Jean Couzy: 15 May 1955: Makalu: 8481: Himalayas: Lionel Terray and Jean Couzy (see also the expedition page) [168] 25 May 1955: Kangchenjunga: 8586: Himalayas: George Band and Joe Brown (see also the expedition page ...

  5. Eastern Himalayas - Wikipedia

    en.wikipedia.org/wiki/Eastern_Himalayas

    The average annual rainfall is 10,000 mm (390 inches). A significantly large amount of snowfall is rare, and it is uncommon even at higher elevations. This belt of Himalayas is wetter as it receives more rain than the drier Western Himalayas. In the valleys of Rangeet, Teesta, and Chumbi most precipitation during winter takes the form of ...

  6. The Earth's tectonic plates made the Himalayas — and could ...

    www.aol.com/news/earth-tectonic-plates-made...

    These chaotic pileups have happened many times in Earth’s history, including 350 million to 400 million years ago in a process that created the Appalachian Mountains, but modern examples are ...

  7. Timeline of natural history - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_natural_history

    The Ca-Al-rich inclusions, which formed 2 million years before the chondrules, [1] are a key signature of a supernova explosion. c. 4,567 ±3 Ma – Rapid collapse of hydrogen molecular cloud , forming a third-generation Population I star , the Sun , in a region of the Galactic Habitable Zone (GHZ), about 25,000 light years from the center of ...

  8. Mountain formation - Wikipedia

    en.wikipedia.org/wiki/Mountain_formation

    Sierra Nevada Mountains (formed by delamination) as seen from the International Space Station. When a fault block is raised or tilted, a block mountain can result. [17] Higher blocks are called horsts, and troughs are called grabens. A spreading apart of the surface causes tensional forces.

  9. History of Earth - Wikipedia

    en.wikipedia.org/wiki/History_of_Earth

    Earth formed in this manner about 4.54 billion years ago (with an uncertainty of 1%) [25] [26] [4] and was largely completed within 10–20 million years. [27] In June 2023, scientists reported evidence that the planet Earth may have formed in just three million years, much faster than the 10−100 million years thought earlier.