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Kashafrud
Kashafrud Basin(کشفرود) is an archaeological site in Iran, known for the Lower Palaeolithic artifacts collected there; these are the oldest-known evidence for human occupation of Iran. Kashafrud includes a cluster of sites which are located 35 km to 85 km southeast of Mashhad, near the Kashfarud River. The French geologist Claude Thibault, in collaboration with the Iranian geologist Ali Ariai, conducted surveys in the Kashfrud basin east of Mashhad in 1974–75, during which 80 stone artifacts were collected from seven open areas. The largest of these collections were found near the village of Abravan and other large collections in Chahak and Baghbaghu. The survey identified three major alluvial units that are roughly attributed to the Lower, Middle, and upper Pleistocene. Many of the findings are attributed to the Lower Pleistocene gravel layer that lays on a thick layer of sand. In an article, Thibaut published the results of a preliminary study of stone arti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kashafrud River
Kashafrud or Kashafrud River is a river that flows from the Hezar Masjed Mountains in Razavi Khorasan Province in northeast of Iran. After passing from the vicinity of the cities of Radkan and Chenaran in Razavi Khorasan Province and then passing north and east of the city of Mashhad, the Kashfrud joins the Harirud River at the frontier of Iran and Turkmenistan. Geography The Kashaf Rood River is 240 km. in length and originates from mountain ranges of Hezar Masjed and Binalood. The main town on the river is the city of Mashhad. The town of Tus is also on the river. The river is irrigated, and known since the Middle Ages for its fertility. History Alexander the Great passed through the valley of the Kashaf River. The Arabs entered the valley in 650AD. Sultan Abu Said built a dam on the river. The Geographer Al-Tusi was from the Kashafrud valley. The army of Genghis Khan attacked the region of the Kashafrud in 1220 AD. Kashafrud Basin Kashafrud Basin is an archaeologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Museum Of Iran
The National Museum of Iran ( fa, موزهٔ ملی ایران ) is located in Tehran, Iran. It is an institution formed of two complexes; the Museum of Ancient Iran and the Museum of Islamic Archaeology and Art of Iran, which were opened in 1937 and 1972, respectively. The institution hosts historical monuments dating back through preserved ancient and medieval Iranian antiquities, including pottery vessels, metal objects, textile remains, and some rare books and coins."Otraq.com, Iran's Tourism Guide" It also includes a number of research departments, categorized by different historical periods and archaeological topics. History The brick building of the Museum of Ancient Iran was designed by French architects |
Olduwan
The Oldowan (or Mode I) was a widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made with one or a few flakes chipped off with another stone. Oldowan tools were used during the Lower Paleolithic period, 2.6 million years ago up until at least 1.7 million years ago, by ancient Hominins (early humans) across much of Africa. This technological industry was followed by the more sophisticated Acheulean industry (two sites associated with ''Homo erectus'' at Gona in the Afar Region of Ethiopia dating from 1.5 and 1.26 million years ago have both Oldowan and Acheulean tools). The term ''Oldowan'' is taken from the site of Olduvai Gorge in Tanzania, where the first Oldowan stone tools were discovered by the archaeologist Louis Leakey in the 1930s. However, some contemporary archaeologists and palaeoanthropologists prefer to use the term ''Mode 1'' tools to designate pebble tool industries (including Oldowan), with ''Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Iran
The prehistory of the Iranian plateau, and the wider region now known as Greater Iran, as part of the prehistory of the Near East is conventionally divided into the Paleolithic, Epipaleolithic, Neolithic, Chalcolithic, Bronze Age and Iron Age periods, spanning the time from the first settlement by archaic humans about a million years ago until the beginning of the historical record during the Neo-Assyrian Empire, in the 8th century BC. Paleolithic One of the potential routes for early human migrations toward southern and eastern Asia is Iran, a country characterized by a wide range of geographic variation and resources, which could support early groups of hominins who wandered into the region. Evidence for the presence of these early populations in Iran includes some stone artifacts discovered from gravel deposits along the Kashafrud River Basin in eastern Iran, the Mashkid and Ladiz Rivers in the southeast, the Sefidrud River in the north, the Mahabad River in the northwest, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Palaeolithic
The Lower Paleolithic (or Lower Palaeolithic) is the earliest subdivision of the Paleolithic or Old Stone Age. It spans the time from around 3 million years ago when the first evidence for stone tool production and use by hominins appears in the current archaeological record, until around 300,000 years ago, spanning the Oldowan ("mode 1") and Acheulean ("mode 2") lithics industries. In African archaeology, the time period roughly corresponds to the Early Stone Age, the earliest finds dating back to 3.3 million years ago, with Lomekwian stone tool technology, spanning Mode 1 stone tool technology, which begins roughly 2.6 million years ago and ends between 400,000 and 250,000 years ago, with Mode 2 technology. The Middle Paleolithic followed the Lower Paleolithic and recorded the appearance of the more advanced prepared-core tool-making technologies such as the Mousterian. Whether the earliest control of fire by hominins dates to the Lower or to the Middle Paleolithic remains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mashhad
Mashhad ( fa, مشهد, Mašhad ), also spelled Mashad, is the second-most-populous city in Iran, located in the relatively remote north-east of the country about from Tehran. It serves as the capital of Razavi Khorasan Province and has a population of 3,001,184 (2016 census), which includes the areas of Mashhad Taman and Torqabeh. The city has been governed by different ethnic groups over the course of its history. Mashhad was once a major oasis along the ancient Silk Road connecting with Merv to the east. It enjoyed relative prosperity in the Mongol period. The city is named after the shrine of Imam Reza, the eighth Shia Imam, who was buried in a village in Khorasan which afterward gained the name, meaning the "place of martyrdom". Every year, millions of pilgrims visit the Imam Reza shrine. The Abbasid caliph Harun al-Rashid is also buried within the same shrine. Mashhad is also known colloquially as the city of Ferdowsi, after the Iranian poet who composed the ''Sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iran
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmenistan to the north, by Afghanistan and Pakistan to the east, and by the Gulf of Oman and the Persian Gulf to the south. It covers an area of , making it the 17th-largest country. Iran has a population of 86 million, making it the 17th-most populous country in the world, and the second-largest in the Middle East. Its largest cities, in descending order, are the capital Tehran, Mashhad, Isfahan, Karaj, Shiraz, and Tabriz. The country is home to one of the world's oldest civilizations, beginning with the formation of the Elamite kingdoms in the fourth millennium BC. It was first unified by the Medes, an ancient Iranian people, in the seventh century BC, and reached its territorial height in the sixth century BC, when Cyrus the Great fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drill
A drill is a tool used for making round holes or driving fasteners. It is fitted with a bit, either a drill or driverchuck. Hand-operated types are dramatically decreasing in popularity and cordless battery-powered ones proliferating due to increased efficiency and ease of use. Drills are commonly used in woodworking, metalworking, construction, machine tool fabrication, construction and utility projects. Specially designed versions are made for miniature applications. History Around 35,000 BC, ''Homo sapiens'' discovered the benefits of the application of rotary tools. This would have rudimentarily consisted of a pointed rock being spun between the hands to bore a hole through another material. This led to the hand drill, a smooth stick, that was sometimes attached to flint point, and was rubbed between the palms. This was used by many ancient civilizations around the world including the Mayans. The earliest perforated artifacts, such as bone, ivory, shells, and antl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleolithic
The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος '' lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone tools, and which represents almost the entire period of human prehistoric technology. It extends from the earliest known use of stone tools by hominins, 3.3 million years ago, to the end of the Pleistocene, 11,650 cal BP. The Paleolithic Age in Europe preceded the Mesolithic Age, although the date of the transition varies geographically by several thousand years. During the Paleolithic Age, hominins grouped together in small societies such as bands and subsisted by gathering plants, fishing, and hunting or scavenging wild animals. The Paleolithic Age is characterized by the use of knapped stone tools, although at the time humans also used wood and bone tools. Other organic commodities were adapted for use as tools, includi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Pleistocene
The Early Pleistocene is an unofficial sub-epoch in the international geologic timescale in chronostratigraphy, being the earliest division of the Pleistocene Epoch within the ongoing Quaternary Period. It is currently estimated to span the time between 2.580 ± 0.005 Ma (million years ago) and 0.773 ± 0.005 Ma. The term Early Pleistocene applies to both the Gelasian Age (to 1.800 ± 0.005 Ma) and the Calabrian Age. While the Gelasian and the Calabrian have officially been defined by the International Union of Geological Sciences (IUGS) to effectively constitute the Early Pleistocene, the succeeding Chibanian and Tarantian ages have yet to be ratified. These proposed ages are unofficially termed the Middle Pleistocene and Late Pleistocene respectively. The Chibanian provisionally spans time from 773 ka to 126 ka, and the Tarantian from then until the definitive end of the whole Pleistocene, c. 9700 BC in the 10th millennium BC The 10th millennium BC spanned the years ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica ( silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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