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Parambikulam Tiger Reserve
Parambikulam Tiger Reserve, which also includes the erstwhile Parambikulam Wildlife Sanctuary, is a protected area lying in Palakkad district and Thrissur district of Kerala state, South India. The Wildlife Sanctuary, which had an area of was established in part in 1973 and 1984. It is in the Sungam range of hills between the Anaimalai Hills and Nelliampathy Hills. Parambikulam Wildlife Sanctuary was declared as part of the Parambikulam Tiger Reserve on 19 February 2010. Including the buffer zone, the tiger reserve has a span of 643.66 km2. The Western Ghats, Anamalai Sub-Cluster, including all of Parambikulam Wildlife Sanctuary, has been declared by the UNESCO World Heritage Committee as a World Heritage Site. The Tiger Reserve is the home of four different tribes of indigenous peoples including the Kadar, Malasar, Muduvar and Mala Malasar settled in six colonies. Parambikulam Tiger Reserve implements the Project Tiger scheme along with various other programs of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palakkad District
Palakkad District () is one of the 14 districts in the Indian state of Kerala. It was carved out from the southeastern region of the former Malabar District on 1 January 1957. It is located at the centre of Kerala. It is the largest district in the state since 2006. The city of Palakkad is the district headquarters. Palakkad is bordered on the northwest by the Malappuram district, on the southwest by the Thrissur district, on the northeast by Nilgiris district, and on the east by Coimbatore district of Tamil Nadu. The district is nicknamed "The granary of Kerala". Palakkad is the gateway to Kerala due to the presence of the Palakkad Gap, in the Western Ghats. The 2,383 m high Anginda peak, which is situated in the border of Palakkad district, Nilgiris district, and Malappuram district, in Silent Valley National Park, is the highest point of elevation in Palakkad district. Palakkad city is located just 50 km away from Coimbatore, a major city in Tamil Nadu s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Peoples
Indigenous peoples are culturally distinct ethnic groups whose members are directly descended from the earliest known inhabitants of a particular geographic region and, to some extent, maintain the language and culture of those original peoples. The term ''Indigenous'' was first, in its modern context, used by Europeans, who used it to differentiate the Indigenous peoples of the Americas from the Europeans, European settlers of the Americas and from the African diaspora, Sub-Saharan Africans who were brought to the Americas as Slavery, enslaved people. The term may have first been used in this context by Thomas Browne, Sir Thomas Browne in 1646, who stated "and although in many parts thereof there be at present swarms of ''Negroes'' serving under the ''Spaniard'', yet were they all transported from ''Africa'', since the discovery of ''Columbus''; and are not indigenous or proper natives of ''America''." Peoples are usually described as "Indigenous" when they maintain traditions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gneiss
Gneiss ( ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures and pressures than schist. Gneiss nearly always shows a banded texture characterized by alternating darker and lighter colored bands and without a distinct cleavage. Gneisses are common in the ancient crust of continental shields. Some of the oldest rocks on Earth are gneisses, such as the Acasta Gneiss. Description Orthogneiss from the Czech Republic In traditional English and North American usage, a gneiss is a coarse-grained metamorphic rock showing compositional banding ( gneissic banding) but poorly developed schistosity and indistinct cleavage. In other words, it is a metamorphic rock composed of mineral grains easily seen with the unaided eye, which form obvious compositional layers, but which has only a weak tendency to fra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biotite
Biotite is a common group of phyllosilicate minerals within the mica group, with the approximate chemical formula . It is primarily a solid-solution series between the iron- endmember annite, and the magnesium-endmember phlogopite; more aluminous end-members include siderophyllite and eastonite. Biotite was regarded as a mineral ''species'' by the International Mineralogical Association until 1998, when its status was changed to a mineral ''group''. The term ''biotite'' is still used to describe unanalysed dark micas in the field. Biotite was named by J.F.L. Hausmann in 1847 in honor of the French physicist Jean-Baptiste Biot, who performed early research into the many optical properties of mica. Members of the biotite group are sheet silicates. Iron, magnesium, aluminium, silicon, oxygen, and hydrogen form sheets that are weakly bound together by potassium ions. The term "iron mica" is sometimes used for iron-rich biotite, but the term also refers to a flaky micaceou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hornblende
Hornblende is a complex inosilicate series of minerals. It is not a recognized mineral in its own right, but the name is used as a general or field term, to refer to a dark amphibole. Hornblende minerals are common in igneous and metamorphic rocks. The general formula is . Physical properties Hornblende has a hardness of 5–6, a specific gravity of 3.0 to 3.6, and is typically an opaque green, dark green, brown, or black color. It tends to form slender prismatic to bladed crystals, diamond-shaped in cross-section, or is present as irregular grains or fibrous masses. Its planes of cleavage intersect at 56° and 124° angles. Hornblende is most often confused with the pyroxene series and biotite mica, which are also dark minerals found in granite and charnockite. Pyroxenes differ in their cleavage planes, which intersect at 87° and 93°. Hornblende is an inosilicate (chain silicate) mineral, built around double chains of silica tetrahedra. These chains extend the length ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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