1.
Summit
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A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a maximum in elevation. The topographic terms acme, apex, peak, and zenith are synonymous, the UIAA definition is that a summit is independent if it has a prominence of 30 metres or more, it is a mountain if it has a prominence of at least 300 metres. This can be summarised as follows, A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top, Summit may also refer to the highest point along a line, trail, or route. In many parts of the western United States, the term refers to the highest point along a road, highway. For example, the highest point along Interstate 80 in California is referred to as Donner Summit while the highest point on Interstate 5 is Siskiyou Mountain Summit, geoid Hill List of highest mountains Maxima and minima Nadir Summit accordance Peak finder
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Morocco
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Morocco, officially known as the Kingdom of Morocco, is a sovereign country located in the Maghreb region of North Africa. Geographically, Morocco is characterized by a mountainous interior, large tracts of desert. Morocco has a population of over 33.8 million and an area of 446,550 km2 and its capital is Rabat, and the largest city is Casablanca. Other major cities include Marrakesh, Tangier, Tetouan, Salé, Fes, Agadir, Meknes, Oujda, Kenitra, a historically prominent regional power, Morocco has a history of independence not shared by its neighbours. Marinid and Saadi dynasties continued the struggle against foreign domination, the Alaouite dynasty, the current ruling dynasty, seized power in 1666. In 1912 Morocco was divided into French and Spanish protectorates, with a zone in Tangier. Moroccan culture is a blend of Arab, indigenous Berber, Sub-Saharan African, Morocco claims the non-self-governing territory of Western Sahara as its Southern Provinces. Morocco annexed the territory in 1975, leading to a war with indigenous forces until a cease-fire in 1991. Peace processes have thus far failed to break the political deadlock, Morocco is a constitutional monarchy with an elected parliament. The King of Morocco holds vast executive and legislative powers, especially over the military, foreign policy, the king can issue decrees called dahirs which have the force of law. He can also dissolve the parliament after consulting the Prime Minister, Moroccos predominant religion is Islam, and the official languages are Arabic and Tamazight. The Moroccan dialect, referred to as Darija, and French are also widely spoken, Morocco is a member of the Arab League, the Union for the Mediterranean, and the African Union. It has the fifth largest economy of Africa, the full Arabic name al-Mamlakah al-Maghribiyyah translates to Kingdom of the West, although the West in Arabic is الغرب Al-Gharb. The basis of Moroccos English name is Marrakesh, its capital under the Almoravid dynasty, the origin of the name Marrakesh is disputed, but is most likely from the Berber words amur akush or Land of God. The modern Berber name for Marrakesh is Mṛṛakc, in Turkish, Morocco is known as Fas, a name derived from its ancient capital of Fes. The English name Morocco is an anglicisation of the Spanish Marruecos, the area of present-day Morocco has been inhabited since Paleolithic times, sometime between 190,000 and 90,000 BC. During the Upper Paleolithic, the Maghreb was more fertile than it is today, twenty-two thousand years ago, the Aterian was succeeded by the Iberomaurusian culture, which shared similarities with Iberian cultures. Skeletal similarities have been suggested between the Iberomaurusian Mechta-Afalou burials and European Cro-Magnon remains, the Iberomaurusian was succeeded by the Beaker culture in Morocco
3.
Mountain range
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A mountain range is a geographic area containing numerous geologically related mountains. A mountain system or system of ranges, sometimes is used to combine several geological features that are geographically related. Mountain ranges are usually segmented by highlands or mountain passes and valleys, individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, most geologically young mountain ranges on the Earths land surface are associated with either the Pacific Ring of Fire or the Alpide Belt. The Andes is 7,000 kilometres long and is considered the worlds longest mountain system. The Alpide belt includes Indonesia and southeast Asia, through the Himalaya, the belt also includes other European and Asian mountain ranges. The Himalayas contain the highest mountains in the world, including Mount Everest, mountain ranges outside of these two systems include the Arctic Cordillera, the Urals, the Appalachians, the Scandinavian Mountains, the Altai Mountains and the Hijaz Mountains. If the definition of a range is stretched to include underwater mountains. The mountain systems of the earth are characterized by a tree structure, the sub-range relationship is often expressed as a parent-child relationship. For example, the White Mountains of New Hampshire and the Blue Ridge Mountains are sub-ranges of the Appalachian Mountains, equivalently, the Appalachians are the parent of the White Mountains and Blue Ridge Mountains, and the White Mountains and the Blue Ridge Mountains are children of the Appalachians. The position of mountains influences climate, such as rain or snow, when air masses move up and over mountains, the air cools producing orographic precipitation. As the air descends on the side, it warms again and is drier. Often, a shadow will affect the leeward side of a range. Mountain ranges are constantly subjected to forces which work to tear them down. Erosion is at work while the mountains are being uplifted and long after until the mountains are reduced to low hills, rivers are traditionally believed to be the principle erosive factor on mountain ranges, with their ability of bedrock incision and sediment transport. The rugged topography of a range is the product of erosion. The basins adjacent to a mountain range are filled with sediments which are buried and turned into sedimentary rock. The early Cenozoic uplift of the Rocky Mountains of Colorado provides an example and this mass of rock was removed as the range was actively undergoing uplift
4.
Atlas Mountains
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The Atlas Mountains are a mountain range in the Maghreb. It stretches around 2,500 km through Algeria, Morocco, the ranges highest peak is Jebel Toubkal, with an elevation of 4,167 metres in southwestern Morocco. It separates the Mediterranean and Atlantic coastlines from the Sahara Desert, the Atlas mountains are primarily inhabited by Berber populations. The terms for mountain in some Berber languages are adrar and adras, the mountains are home to a number of plant and animal species unique in Africa, often more like those of Europe, many of them are endangered and some have already gone extinct. The basement rock of most of Africa was formed during the Precambrian period, the Atlas was formed during three subsequent phases of Earths geology. The first tectonic deformation phase involves only the Anti-Atlas, which was formed in the Paleozoic Era as the result of continental collisions, North America, Europe and Africa were connected millions of years ago. The Anti-Atlas Mountains are believed to have originally formed as part of Alleghenian orogeny. These mountains were formed when Africa and America collided, and were once a chain rivaling todays Himalayas, today, the remains of this chain can be seen in the Fall Line region in the Eastern United States. Some remnants can also be found in the later formed Appalachians in North America, a second phase took place during the Mesozoic Era. It consisted of an extension of the Earths crust that rifted and separated the continents mentioned above. This extension was responsible for the formation of many thick intracontinental sedimentary basins including the present Atlas, most of the rocks forming the surface of the present High Atlas were deposited under the ocean at that time. Such convergent tectonic boundaries occur where two plates slide towards each other forming a zone, and/or a continental collision. However, there is a lack of evidence for the nature of the subduction in the Atlas region, or for the thickening of the Earths crust generally associated with continental collisions. In fact, one of the most striking features of the Atlas to geologists is the small amount of crustal thickening. Recent studies suggest that deep processes rooted in the Earths mantle may have contributed to the uplift of the High, the Atlas are rich in natural resources. There are deposits of ore, lead ore, copper, silver, mercury, rock salt, phosphate, marble. The range can be divided into four regions, Middle Atlas. The Middle Atlas is a portion of the Atlas mountain range lying completely in Morocco, the Middle Atlas is the westernmost of three Atlas Mountains chains that define a large, plateaued basin extending eastward
5.
Orogeny
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An Orogeny is an event that leads to a large structural deformation of the Earths lithosphere due to the interaction between tectonic plates. Orogens or orogenic belts develop when a plate is crumpled and is pushed upwards to form mountain ranges. Orogeny is the mechanism by which mountains are built on continents. The word orogeny comes from Ancient Greek, though it was used before him, the term was employed by the American geologist G. K. Gilbert in 1890 to describe the process of mountain building as distinguished from epeirogeny. Formation of an orogen is accomplished in part by the processes of subduction or convergence of two or more continents. Orogeny usually produces long arcuate structures, known as orogenic belts, generally, orogenic belts consist of long parallel strips of rock exhibiting similar characteristics along the length of the belt. Orogenic belts are associated with zones, which consume crust, produce volcanoes. Geologists attribute the arcuate structure to the rigidity of the descending plate and these island arcs may be added to a continent during an orogenic event. The processes of orogeny can take tens of millions of years, frequently, rock formations that undergo orogeny are severely deformed and undergo metamorphism. Orogenic processes may push deeply buried rocks to the surface, sea-bottom and near-shore material may cover some or all of the orogenic area. If the orogeny is due to two continents colliding, very high mountains can result, an orogenic event may be studied, as a tectonic structural event, as a geographical event, and as a chronological event. The foreland basin forms ahead of the orogen due mainly to loading and resulting flexure of the lithosphere by the mountain belt. The basin migrates with the front and early deposited foreland basin sediments become progressively involved in folding and thrusting. Sediments deposited in the basin are mainly derived from the erosion of the actively uplifting rocks of the mountain range. The fill of many such shows an change in time from deepwater marine through shallow water to continental sediments. Although orogeny involves plate tectonics, the tectonic forces result in a variety of associated phenomena, including magmatism, metamorphism, crustal melting, what exactly happens in a specific orogen depends upon the strength and rheology of the continental lithosphere, and how these properties change during orogenesis. In addition to orogeny, the orogen is subject to other processes, for example, the Caledonian Orogeny refers to the Silurian and Devonian events that resulted from the collision of Laurentia with Eastern Avalonia and other former fragments of Gondwana. The Caledonian Orogen resulted from events and various others that are part of its peculiar orogenic cycle
6.
Paleozoic
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The Paleozoic Era is the earliest of three geologic eras of the Phanerozoic Eon, from 541 to 252.17 million years ago. It is the longest of the Phanerozoic eras, and is subdivided into six periods, the Cambrian, Ordovician, Silurian, Devonian, Carboniferous. The Paleozoic comes after the Neoproterozoic era of the Proterozoic and is followed by the Mesozoic, the Paleozoic was a time of dramatic geological, climatic, and evolutionary change. The Cambrian witnessed the most rapid and widespread diversification of life in Earths history, known as the Cambrian explosion, fish, arthropods, amphibians, anapsids, synapsids, euryapsids and diapsids all evolved during the Paleozoic. Life began in the ocean but eventually transitioned onto land, and by the late Paleozoic, Great forests of primitive plants covered the continents, many of which formed the coal beds of Europe and eastern North America. Towards the end of the era, large, sophisticated diapsids and synapsids were dominant, the Paleozoic Era ended with the largest extinction event in the history of Earth, the Permian–Triassic extinction event. The effects of this catastrophe were so devastating that it took life on land 30 million years into the Mesozoic Era to recover, recovery of life in the sea may have been much faster. The Paleozoic era began and ended with supercontinents and in between were the rise of mountains along the margins, and flooding and draining of shallow seas between. At its start, the supercontinent Pannotia broke up, paleoclimatic studies and evidence of glaciers indicate that central Africa was most likely in the polar regions during the early Paleozoic. During the early Paleozoic, the huge continent Gondwana formed or was forming, by mid-Paleozoic, the collision of North America and Europe produced the Acadian-Caledonian uplifts, and a subduction plate uplifted eastern Australia. There are six periods in the Paleozoic Era, Cambrian, Ordovician, Silurian, Devonian, Carboniferous, the Cambrian spans from 541 million years to 485 million years and is the first period of the Paleozoic era of the Phanerozoic. The Cambrian marked a boom in evolution in an event known as the Cambrian explosion in which the largest number of creatures evolved in any period of the history of the Earth. Creatures like algae evolved, but the most ubiquitous of that period were the armored arthropods, almost all marine phyla evolved in this period. During this time, the supercontinent Pannotia begins to break up, the Ordovician spanned from 485 million years to 443 million years ago. The Ordovician is a time in Earths history in many of the biological classes still prevalent today evolved, such as primitive fish, cephalopods. The most common forms of life, however, were trilobites, snails, more importantly, the first arthropods went ashore to colonize the empty continent of Gondwana. By the end of the Ordovican, Gondwana was at the pole, early North America had collided with Europe. Glaciation of Africa resulted in a drop in sea level
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