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The Shammar Mountains () is a mountain range in the northwestern
Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in West Asia. Located in the centre of the Middle East, it covers the bulk of the Arabian Peninsula and has a land area of about , making it the List of Asian countries ...
n province of Ha'il. It includes the Ajā () and Salma subranges.


Geology

The Aja Mountains are to an extent made up of
granite Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly coo ...
, whereas the Salma are made up of
basalt Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...
. The phrase "Hadn formation" was used by Chevremont (1982) to refer to
volcanic rock Volcanic rocks (often shortened to volcanics in scientific contexts) are rocks formed from lava erupted from a volcano. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and me ...
s of the area of Ha'il, and was treated by Hadley and Schmidt (1980) as being part of a silicic and
volcaniclastic Volcaniclastics are geologic materials composed of broken fragments (clasts) of volcanic rock. These encompass all clastic volcanic materials, regardless of what process fragmented the rock, how it was subsequently transported, what environment it ...
sequence referred to as the "Shammar group", in a broader, regional context.


Wildlife

The protected area of Jabal Aja is of
ecological Ecology () is the natural science of the relationships among living organisms and their environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere levels. Ecology overlaps with the closely re ...
significance. Two Asiatic cheetahs, the last known in the country, were killed near Ha'il in 1973, and their skins kept near the Imara Palace for a few days.


Peaks

* Mount Aja () * Mount Samra' ()


Gallery

File:Alsamra.jpg, A view of Ha'il City from the top of Samra Mountain File:صورة طائر غريب من وحي الطبيعة - panoramio - Abothamer Homoud.jpg, Natural bird shape File:Mahagah2.jpg, Mahajah rock formation


See also

* Adayra Valley * Emirate of Jabal Shammar * Ghor es-Safi * List of mountains in Saudi Arabia * People: ** Al Fadl ** Jarrahids **
Shammar The tribe of Shammar () is a tribal Arab Qahtanite confederation, descended from the Tayy, which migrated into the northern Arabian Peninsula from Yemen in the second century. It is the largest branch of the Tayy, and one of the largest and mos ...
** Tayy'


References


External links


The tantalizing Aja and Salma mountains in Hail, northwest of Saudi Arabia
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Mobily_Hail_Shamma & Salma Mountain_HD
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) Mountain ranges of Saudi Arabia {{SaudiArabia-geo-stub