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Lanela
Lanela is a village located in the district of Jaisalmer in the state of Rajasthan in India. It has a population of about 1049 persons living in around 194 households. History Lanela is a Paliwal village, about 1000 years old. The word "Lanela" means "Lavanya Illa" which means "The Land with Beauty". Geological survey of Lanela Ammonites Study of the Jurassic Rocks of Jaisalmer basin, Rajasthan. A research Project to evaluate ammonite fauna from the Jurassic rocks of Jaisalmer district was taken up during F.S. 1996‐98 under Palaeontology Division of western region, Jaipur. Intensive field works were carried out in the area around Jaisalmer to study different litho‐packages and collect ammonite fauna to establish biozonation. The marine Jurassic succession of Jaisalmer basin has been classified into three distinct formations namely Jaisalmer, Baisakhi and Bedesar Formations in ascending order of antiquity. These are underlain by non‐marine sequence of Lathi Formation which ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaisalmer
Jaisalmer , nicknamed "The Golden city", is a city in the Indian state of Rajasthan, located west of the state capital Jaipur. The town stands on a ridge of yellowish sandstone and is crowned by the ancient Jaisalmer Fort. This fort contains a royal palace and several ornate Jain temples. Many of the houses and temples of both the fort and of the town below are built of finely sculptured sandstone. The town lies in the heart of the Thar Desert (the Great Indian Desert) and has a population, including the residents of the fort, of about 78,000. It is the administrative headquarters of Jaisalmer District. Jaisalmer was once the capital of Jaisalmer State. Origin of name Jaisalmer was founded by Rawal Jaisal in 1156 AD. ''Jaisalmer'' means ''the Hill Fort of Jaisal''. Jaisalmer is sometimes called the "Golden City of India" because the yellow sandstone used throughout the architecture of both the fort and the town below, imbues both with a certain golden-yellow light. Geography ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rajasthan
Rajasthan (; lit. 'Land of Kings') is a state in northern India. It covers or 10.4 per cent of India's total geographical area. It is the largest Indian state by area and the seventh largest by population. It is on India's northwestern side, where it comprises most of the wide and inhospitable Thar Desert (also known as the Great Indian Desert) and shares a border with the Pakistani provinces of Punjab to the northwest and Sindh to the west, along the Sutlej- Indus River valley. It is bordered by five other Indian states: Punjab to the north; Haryana and Uttar Pradesh to the northeast; Madhya Pradesh to the southeast; and Gujarat to the southwest. Its geographical location is 23.3 to 30.12 North latitude and 69.30 to 78.17 East longitude, with the Tropic of Cancer passing through its southernmost tip. Its major features include the ruins of the Indus Valley civilisation at Kalibangan and Balathal, the Dilwara Temples, a Jain pilgrimage site at Rajasthan's only hill stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonite
Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) than they are to shelled nautiloids such as the living ''Nautilus'' species. The earliest ammonites appeared during the Devonian, with the last species vanishing during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and linking the rock layer in which a particular species or genus is found to specific geologic time periods is often possible. Their fossil shells usually take the form of planispirals, although some helically spiraled and nonspiraled forms (known as heteromorphs) have been found. The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder ( 79 AD near Pomp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaisalmer Basin
{{Use Indian English, date=May 2022 The Jaisalmer basin is one of the parts of the Rajasthan basin in northwestern India. This basin is geographically shared with Pakistan to the west. Jaisalmer basin ages back to Mesozoic and Cenozoic. It is a pericratonic Sedimentary basin, basin while the other two parts of Rajasthan basin; Bikaner-Nagaur and Barmer-Sanchor are intracratonic basins. Petroleum in the Jaisalmer sub basin Within the Jaisalmer petroleum has been explored by various oil companies including Focus Energy, Oil & Natural Gas Corporation (ONGC) and Oil India Limited in the Lower Goru, Pariwar formations of Jaisalmer sub Basin. Clastic rock, Clastic sandstones serve as the reservoirs. these include the Baisakhi-Bedesir, Pariwar, Goru, Sanu and Khuiala formations. Traps in this area are restricted to Fault (geology), fault related closures and unconformity related traps. Other important formations are Sembar / Bedesir - Baisakhi Shales, Karampur/Badhaura Formation Shales, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaipur
Jaipur (; Hindi Language, Hindi: ''Jayapura''), formerly Jeypore, is the List of state and union territory capitals in India, capital and largest city of the Indian States and union territories of India, state of Rajasthan. , the city had a population of 3.1 million, making it the List of cities in India by population, tenth most populous city in the country. Jaipur is also known as the ''Pink City'', due to the dominant colour scheme of its buildings. It is also known as the Paris of India, and C. V. Raman called it the ''Island of Glory''. It is located from the national capital New Delhi. Jaipur was founded in 1727 by the Kachhwaha Rajput ruler Jai Singh II, the ruler of Amer, India, Amer, after whom the city is named. It was one of the earliest planned cities of modern India, designed by Vidyadhar Bhattacharya. During the British Colonial period, the city served as the capital of Jaipur State. After independence in 1947, Jaipur was made the capital of the newly formed s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaisalmer Formation
The Jaisalmer Formation is a Middle to Late Jurassic-aged geologic formation located in India near the city of Jaisalmer that consists mainly of marine deposits. The formation was first identified and defined by geologist Richard Dixon Oldham in 1886. Dinosaur remains are among the known fossils recovered from this formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): ''The Dinosauria'', 2nd, ''Berkeley: University of California Press''. Pp. 593–600. . Sub-units The Badabag, Fort, Joyan and Hamira members represent the Middle Jurassic Bajocian and Bathonian stages, while the Jajiya and Kuldhar members represent the Middle Jurassic Callovian and the Late Jurassic Oxfordian stages. The Fort Member is the most extensively studied and consists of fine to medium grain sandstones and oolitic limestones. The Badabag Member consists of intraformational conglomerate a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltstone
Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility.Blatt ''et al.'' 1980, pp.381-382 Although its permeability and porosity is relatively low, siltstone is sometimes a tight gas reservoir rock, an unconventional reservoir for natural gas that requires hydraulic fracturing for economic gas production. Siltstone was prized in ancient Egypt for manufacturing statuary and cosmetic palettes. The siltstone quarried at Wadi Hammamat was a hard, fine-grained siltstone that resisted flaking and was almost ideal for such uses. Description There is not complete agreement on the definition of siltstone. One definition is that siltstone is mudrock ( clastic sedimentary rock containing at least 50% clay and silt) in which at least 2/3 of the clay and silt fraction is composed of silt-sized particles. Silt is defined a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ironstone
Ironstone is a sedimentary rock, either deposited directly as a ferruginous sediment or created by chemical replacement, that contains a substantial proportion of an iron ore compound from which iron (Fe) can be smelted commercially. Not to be confused with native or telluric iron, which is very rare and found in metallic form, the term ''ironstone'' is customarily restricted to hard, coarsely banded, non-banded, and non-cherty sedimentary rocks of post-Precambrian age. The Precambrian deposits, which have a different origin, are generally known as banded iron formations. The iron minerals comprising ironstones can consist either of oxides, i.e. limonite, hematite, and magnetite; carbonates, i.e. siderite; silicates, i.e. chamosite; or some combination of these minerals.U.S. Bureau of Mines Staff (1996) ''Dictionary of Mining, Mineral, & Related Terms.'' Report SP-96-1, U.S. Department of Interior, U.S. Bureau of Mines, Washington, D.C.Neuendorf, K. K. E., J. P. Mehl Jr., and J. A. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thar Desert
The Thar Desert, also known as the Great Indian Desert, is an arid region in the north-western part of the Indian subcontinent, Subcontinent that covers an area of and forms a natural boundary between India and Pakistan. It is the world's List of deserts by area, 20th-largest desert, and the world's 9th-largest hot subtropical desert. About 85% of the Thar Desert is in India, and about 15% is in Pakistan. The Thar Desert is about 4.56% of the total geographical area of India. More than 60% of the desert lies in the Indian state of Rajasthan; the portion in India also extends into Gujarat, Punjab, India, Punjab, and Haryana. The portion in Pakistan extends into the provinces of Sindh and Punjab, Pakistan, Punjab (the portion in the latter province is referred to as the Cholistan Desert). History of desertification Ice-age desertification During the Last Glacial Maximum 20,000 before present, an approximately ice sheet covered the Tibetan Plateau#Glaciology, Tibetan P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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