metamorphic rocks of pakistan
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metamorphic rocks of pakistan

Geo chemistry of metamorphic rock in pakistan

Dec 26, 2016 · 14. Chemistry of Marble • Metamorphic rock containing more than 50% vol. of calcite and/or dolomite and/or aragonite. • Pure marble contains more than 95% vol.of these carbonate minerals, whereas the remainder are classified as impure marble. 15. Marble Hunza marble Low grade marble. 16.

Crystalline rocks of the Spinatizha area, Pakistan ...

Four units are present. (1) The Spinatizha Metamorphic Complex includes orthogneiss, greenschist, amphibolite, metavolcanics, marble and foliated muscovite granite. Extreme variation in rock type and degree of metamorphism characterises the entire complex. It is the oldest unit west of the Chaman fault in Pakistan.

Metamorphic Temperature Investigation of Coexisting ...

The variety of metamorphic rocks in Himalayas is as-tounding. Accordingly, there is no dearth of scientific literature on deciphering the metamorphic history of these rocks. In gen-eral, the northern Pakistan is home to medium and high-grade metamorphic rocks; however, the

Geochemical characterization of proterozoic upper crustal ...

Feb 01, 1990 · SOUTHERN MALAKAND AGENCY, PAKISTAN 183 Geology of metamorphic rocks This group includes the Proterozoic regional low-grade metamorphic rocks belonging to the greenschist facies. Their age is determined from the stratigraphy of the region, accepted by most workers, e.g., Coward et al. (1986, fig. 3) and Searle et al. (1987, fig. 7).

Crystalline rocks of the Spinatizha area, Pakistan ...

Four units are present. (1) The Spinatizha Metamorphic Complex includes orthogneiss, greenschist, amphibolite, metavolcanics, marble and foliated muscovite granite. Extreme variation in rock type and degree of metamorphism characterises the entire complex. It is the oldest unit west of the Chaman fault in Pakistan.

Crystalline rocks of the Spinatizha area, Pakistan - NASA/ADS

Four units are present. (1) The Spinatizha Metamorphic Complex includes orthogneiss, greenschist, amphibolite, metavolcanics, marble and foliated muscovite granite. Extreme variation in rock type and degree of metamorphism characterises the entire complex. It is the oldest unit west of the Chaman fault in Pakistan.

Metamorphic Temperature Investigation of Coexisting ...

The variety of metamorphic rocks in Himalayas is as-tounding. Accordingly, there is no dearth of scientific literature on deciphering the metamorphic history of these rocks. In gen-eral, the northern Pakistan is home to medium and high-grade metamorphic rocks; however, the

(PDF) Thermobaric structure of the Himalayan Metamorphic ...

IntroductionThe Kaghan Valley in Pakistan is uniquely important to an understanding of the metamorphic history and tectonic evolution of the Himalayas. In this valley, a complete section of the Himalayan metamorphic belt (HMB) is exposed, ranging from feebly metamorphosed rocks to ultrahigh-pressure (UHP) rocks.

The petrology of the basic and intermediate rocks of upper ...

Rocks of upper Swat, Pakistan 287-,, Jandul Valley (Kakar, Mian & Khan, 1971). On this side, a large proportion of the amphibolitic rocks are metasedimentary, locally containing quartzites, and it becomes increasingly difficult to distinguish the igneous rocks, frequently themselves metamorphosed, from the metasedimentary layers. The area around

Geochemical characterization of proterozoic upper crustal ...

Feb 01, 1990 · SOUTHERN MALAKAND AGENCY, PAKISTAN 183 Geology of metamorphic rocks This group includes the Proterozoic regional low-grade metamorphic rocks belonging to the greenschist facies. Their age is determined from the stratigraphy of the region, accepted by most workers, e.g., Coward et al. (1986, fig. 3) and Searle et al. (1987, fig. 7).

FORESTS OF PAKISTAN

The rocks found in Pakistan can be classified into three major groups, viz. the igneous rocks, the sedimentary rocks and the metamorphic rocks. In the Himalayan regions, the common rock types are metamorphic which are gneisses, schists, slates and phyllites with some quartzite and marble. In the northern part of Indus plain, between Sargodha ...

Metamorphic history and tectonic evolution of the ...

Metamorphic history and tectonic evolution of the Himalayan UHP eclogites in Kaghan valley, Pakistan Hafiz Ur R ehman * , Hiroshi Y amamoto * , M. Ayub Khan K halil ** , Eizo N akamura *** ,

Geology and geochemistry of Indian plate rocks south of ...

The metamorphic and granitic rocks of the Besham area uplift may be correlative with basement exposed in the Nanga Parbat-Haramosh massif. Specifically, the quartzofeldspathic gneisses of the Besham group may correlate with the Nanga Parbat gneisses, and the amphibolites found in the Besham area may correlate with mafic dikes of the massif.

(PDF) Facies and distribution of metamorphic rocks beneath ...

a) Quartzite band in amphibolite facies rocks from the metamorphic sole rocks, Jang Tor Ghar Massif of Muslim Bagh Ophiolite. b) the alignment of plagioclase (Pl) and hornblende (Hbl) in ...

(PDF) Study of the tectonic uplift history of the Sillai ...

The Petrology of the Warsak Alkaline granites, (b) ages of metamorphic overprinting, (c) Oligocene Pakistan, and their relationship to other alkaline rocks of the region. Geol. Mag. 110, 385±404.

Tectonostratigraphic subdivisions of the Himalaya: A view ...

[1] Indian plate rocks in the central Himalaya have traditionally been divided into orogen-parallel, fault-bound tectonostratigraphic zones. A straightforward westward extrapolation of these zones has proved problematic in part because of a lack of consensus on the existence or significance of major faults within the metamorphic zone of the Indian plate in Pakistan where more than 10 locations ...

Metamorphic rocks - SlideShare

Jan 04, 2016 · Metamorphic rocks. 1. Dr. V. R Ghodake Sinhgad College of Engineering, Vadgaon (Bk), Pune. Email- [email protected] Mobile- 9764484757. 2. They are altered or changed beyond their recognition, i.e. change in Chemical composition, texture and structure When rocks are baked by heat of molten magma or squeezed by the movements of huge tectonic ...

(PDF) Tectonic evolution of the Mogok metamorphic belt ...

Tectonic evolution of the Mogok metamorphic belt, Burma (Myanmar) constrained by U-Th-Pb dating of metamorphic and magmatic rocks. Tectonics, 2007. Dave Waters. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper.

Thematic Article Metamorphic P–T evolution of high ...

Pakistan is a key area where rocks of the Indian Plate have been subducted to greater depths >100 km beneath the Asian Plate and experienced high- to ultrahigh-pressure metamorphism. At least three distinct metamorphic events can be recognized in the meta-morphosed mafic rock units (eclogites and amphibolitized eclogites) of the Kaghan Valley:

Geology and Copper Mineralization of the Saindak ...

the nearly horizontal sedimentary rocks capping Saindak Koh. A zone of low-grade contact-metamorphic rocks about 4 miles wide, mostly albite-epidote hornfels, is related to the quartz diorite stocks, and trends northward through the middle of the mapped area. Three general types of mineral deposits were found: (1) dis­

Crystalline rocks of the Spinatizha area, Pakistan - NASA/ADS

Four units are present. (1) The Spinatizha Metamorphic Complex includes orthogneiss, greenschist, amphibolite, metavolcanics, marble and foliated muscovite granite. Extreme variation in rock type and degree of metamorphism characterises the entire complex. It is the oldest unit west of the Chaman fault in Pakistan.

PakistanPaedia - Geography of Pakistan

The rocks found in Pakistan can be classified into three major groups, viz. the igneous rocks, the sedimentary rocks and the metamorphic rocks. In the Himalayan regions, the common rock types are metamorphic which are gneisses, schist, slates and phyllites with some quartzite and marble. In the northern part of Indus plain, between Sargodha and ...

Tectonostratigraphic subdivisions of the Himalaya: A view ...

Indian plate rocks in the central Himalaya have traditionally been divided into orogen-parallel, fault-bound tectonostratigraphic zones. A straightforward westward extrapolation of these zones has proved problematic in part because of a lack of consensus on the existence or significance of major faults within the metamorphic zone of the Indian plate in Pakistan where more than 10 locations for ...

Geology of Pakistan — Schweizerbart science publishers

3.4 Cenozoic sedimentary rocks 101 3.41 Palaeogene 103 3.42 The Palaeogene sequence in the West Pakistan Foldbelt 105 3.43 Neogene 114 3.44 Quaternary 118 4. Igneous and metamorphic rocks (FAIL AHMAD SHAMS) 125 4.1 Igneous and metamorphic rocks of the Tethyan Belt 125 4.11 Indo-Pakistan Plate 125 4.111 South of the Main Mantle Thrust (MMT) Zone 125

Geo-Archaeology of the Swāt Valley (NWFP, Pakistan) in the ...

3) Pre-Triassic metamorphic and magmatic rocks of the Indo-Pakistan Plate. All the examined archaeological sites are located on the Indo-Pakistan Plate and most of the lithic material used for the constructions and sacred monuments is of a local provenance. Therefore, our studies concerned at first the Indo-Pakistan Plate; later they were extended

Different types of rocks used as building stone - Geo Studies

Sep 08, 2021 · In Pakistan, the sandstones of the Balochistan Plateau are transported all through the country to meet the need of construction material. In villages, small buildings are made with sandstone and mud mortar. ... The slate is a metamorphic rock, which can be broken easily into thin smooth slabs. It is used chiefly for roofing and paving in buildings.

Regional Metamorphism • GeoLearning • Department of Earth ...

Pakistan. Image Credit: Dorothee Mertmann. Regional metamorphism includes any metamorphic process that occurs over a large region. It is therefore the most widespread and common type of metamorphism. There are three basic types of regional metamorphism, namely burial, ocean-ridge and the orogenic regional metamorphism.

Metamorphic Rock | Etsy

Gneiss Metamorphic Rock - 3 Unpolished Mineral Specimens - Measures 1-2 inches on Longest Side. BeakersWorld. 5 out of 5 stars. (2,689) $8.99. Add to Favorites. Nice gneiss (“nice”) sample from Minnesota. Textbook example!

Geology of Afghanistan - Wikipedia

Stratigraphy & geologic history. Afghanistan is underlain by Precambrian metamorphic rocks, which form high regions in the center of the country and in the Hindu Kush. The Central Afghan Swell, between Herat and Panjab is the northernmost structural high, encompassing metamorphic rocks. The swell is connected to the Hindu Kush by Precambrian rocks in Koh-i-Baba.

(PDF) Study of the tectonic uplift history of the Sillai ...

The Petrology of the Warsak Alkaline granites, (b) ages of metamorphic overprinting, (c) Oligocene Pakistan, and their relationship to other alkaline rocks of the region. Geol. Mag. 110, 385±404.

Lapis Lazuli: A blue gem used for cabochons, beads, inlay

Lapis lazuli, also known simply as "lapis," is a blue metamorphic rock that has been used by people as a gemstone, sculpting material, pigment, and ornamental material for thousands of years. High quality lapis lazuli can be a costly gem. The most desirable specimens have a rich, solid blue color and perhaps a few reflective pieces of gold pyrite.

Petrology and geochemistry of amphibolites and ...

Sep 17, 2014 · The metamorphic sole rocks are exposed northwest of JTGM and west of STGM of the Muslim Bagh ophiolite (Fig. 1).The sole rocks of JTGM consist of basal-foliated peridotite and the sub-ophiolitic metamorphic rocks; garnet amphibolite facies passing downwards into amphibolite facies and greenschist facies with calcite–marble inter-layers which exhibits decreasing metamorphic grade and ...

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