Delarato is a Ophthalmologist in Sewell, NJ. How to say dolerite in English? Pronunciation of dolerite with 3 audio pronunciations, 5 translations, 3 sentences and more for dolerite. It is particularly notable for its spotted appearance in hand specimen, an effect caused by low grade regional metamorphism during the Caledonian orogeny. Nicole Helene Delarato, MD is a health care provider primarily located in Philadelphia, PA, with other offices in Voorhees, NJ and VOORHEES, NJ ( and 3 other locations ). Gabbro is a type of intrusive igneous rock that is coarse-grained and dark-colored, typically composed of calcium-rich plagioclase feldspar, pyroxene, and sometimes olivine. 2. The late Mesozoic volcanic lavas, in general, can be further divided into the upper and lower volcanic series separated by a regional unconformity (Liu et al. Like other mafic rocks, it is relatively low in silica content. The end-Cretaceous (ca. Field mapping, drill-core logging, petrography, laser ICP-MS analysis on pyrite, chlorite geothermometry and geochemical analysis of hydrothermally altered rocks reveal two distinct styles of gold mineralisation at Mt. g. , 2018a, Jin et al. a type…. She is affiliated with Virtua Voorhees, Cooper University Health. Diabase or Dolerite. Dr. 2. Find all the synonyms and alternative words for dolerite at Synonyms. Ar/Ar dating gives an age of 178. , 2005): the Beihuaiyang zone, the North, Central, and South Dabie zones, and the Neoproterozoic Susong zone (Fig. It occurs in distinct crystals, and in extensive beds as a compact limestone, often crystalline granular, either white or clouded. Abstract and Figures. Petrographic slide of dolerite (x8). Dolerite pounders are hand-held stone took that were widely used in Egypt from the third to late first millennium BCE for quarrying and dressing granite and other hard rocks. Remnants of these once extensive lavas now form the Lesotho highlands and Lebombo mountains. 4 Ma. 180 Ma) in this part of southern Africa (Cox, 1992, Encarnación et al. 1 b). 1 mi) long, 200-metre (660 ft) high, mountain cliff, close to the sea, at the north-eastern corner of County Antrim, Northern Ireland. Sold: 3 beds, 2 baths, 1634 sq. Photo shows gold jewelry recovered from the ash deposits of the 79 A. Learn more in the Cambridge English-Chinese simplified Dictionary. — Elizabeth Preston, Discover Magazine, 22 Aug. Results of sample analysis from these study areas show that density ranges between 2. Doleritic intrusions in Natal and adjoining areas of South Africa are very numerous, and are associated with the break-up of Gondwana which took place some 187 to 155 million years ago. These intrusions are part of an. Della Ratta is a Internist in Mineola, NY. 8,1933 in Mishawaka, Indiana. Dummett (east of Mount McCauley) and on Good-speed Nunataks ("c" on figure 1), and by the dis-tinctive sequence of quartzite and amphiboliticA hydrothermal event of Musgravian age is suggested at Olympic Dam via the analysis of pyrite-chalcopyrite mineral separates from a deep, low-Re zone, yielding Re-Os ages of 1258 ± 28 Ma (McInnes. Dolomite, type of limestone, the carbonate fraction of which is dominated by the mineral dolomite, calcium magnesium carbonate. The Exclusive Designer range is diverse in colour, tone and texture and will compliment the many facets of design that are in demand today. Log in or Sign up. Learn more. A methodological proposal for the characterisation of dolerite rock aiming to test a non-destructive and non-invasive analytical approach has been developed. Dolerite definition: . In British and Australian usage: A medium grained mafic intrusive rock whose main components are calcic plagioclase and clinopyroxene and which is characterized by ophitic to subophitic texture; usually found in sills and dykes. The presumable area in which the dolerite intrusions occur ranges from. How to say dolerite. Back to top. com for all information on Dr. The Fraser swarm is probably continuous, beneath regolith, with undeformed dolerite. , thermal contraction) led to boiling of aureole pore fluids that ultimately led to sediment fluidization. In this book, body image advocate and sexual wellness expert Laura Delarato teaches that sexual pleasure is an essential form of self-care, and it begins with loving your body and yourself. Available geochronological data indicate Ediacaran to Cambrian age of ophiolite and island arc magmatism of the Dzhida terrain. Rocks are much more vaguely defined than minerals. Dr. 00 - ASSAULT 3, 120. Mafic dyke swarms are abundantly distributed in the Archean Dharwar craton. She is a white, non hispanic female registered to vote in Palm Beach County, Florida. 6 m 3 (815. 1). * * All offers due by Monday, May 8, 2016. , 2012). Although not popular, it makes an excellent monumental stone and is one of the dark-coloured rocks commercially known as. James A. The five soil profiles studied are located at Mt. Magnetite-bearing granophyre and quartz dolerite are the evolved fractions of differentiated dolerite (diabase) sills and are an important host to Archean gold deposits because they are chemical traps for orogenic fluids. The Whin Sill or Great Whin Sill is a tabular layer of the igneous rock dolerite in County Durham, Northumberland and Cumbria. View 25 photos for 4 Dolerite Dr, Taylors, SC 29687, a 3 bed, 2 bath, 1,662 Sq. U–Pb baddeleyite ages of dolerite dikes and sills fall into three age intervals: 1264–1271 (the Dalarna complex), 1256–1259 (the Västerbotten-Ulvö-Satakunta complexes) and ∼1247. Nicole Delarato, MD is an ophthalmology specialist in Philadelphia, PA and has over 27 years of experience in the. Urea, calcium and simple carbon nutrients are supplied to produce carbonates via urea hydrolysis and induce the precipitation of the mineral calcite. 1K Likes. The Australian Museum is a New South Wales Government funded cultural institution. Laura Delarato. Diabase dykes and sills are typically shallow intrusive bodies and often exhibit fine. DELARETO v. The hydrogeological characteristics depend on inter alia the geological material. , 1996, Duncan et al. 24+. Where olivine also occurs as an additional mineral, the rock is termed an ‘olivine dolerite. Dolerite dyke sets occur distributed in the Dharmapuri and Salem districts of northern Tamil nadu. Sell & Trade Game Items | OSRS Gold | ELO. They are 20 to 30 m in width and stretch on more than 100 m. a type of dark rock that comes from magma (= very hot liquid rock that has cooled): 2. 8 Ga (Liu et al. , Dalziel Citation 1997; Torsvik et al. Also called bitter spar. A. Bluestone is a cultural or commercial name for a number of dimension or building stone varieties, including: basalt in Victoria, Australia, and in New Zealand. It is extremely hard and tough and is commonly quarried for crushed stone, under the name of trap. These rocks are what geologists call dolerites, with its distinct elongated shape and hexagonal columns. Hatch et al. The Karoo igneous suite is a significant part of a large igneous province which extends from South Africa, along the Trans-Antarctic Mountains to Tasmania and South Australia (Fig. cwru. Ophthalmology • Female • Age 56. W. When this part of the Earth was being stretched during an episode of mountain building caused by movement of the tectonic plates 295 million years ago, the molten magma was injected into weaker places in existing sedimentary rocks (rocks like limestone and sandstone) as. Figure 1. View 16 photos for 3424 Dolerite Ct, West Lafayette, IN 47906, a 3 bed, 3 bath, 2,474 Sq. 1). $335,000 Last Sold Price. — Elizabeth Preston, Discover Magazine, 22 Aug. Whilst in-roads are being made into clean energy, coal remains the primary energy source in South Africa for domestic power generation, and is set to dominate energy demands for the foreseeable future (Hancox and Götz 2014). MLS# 13591079. Sills of Ferrar Dolerite also intruded the Nelson Limestone (Cambrian) in the Schneider Hills of the Argentina Range (Section 8. Fragmentation of the Protocontinental masses along the orthogonal type of mega-fractures during cratonisation processes is responsible in breaking-up of the Indian shield into major crustal blocks. Dolerite is similar in composition to basalt, which is volcanic, and gabbro, which is plutonic. A fulfilled mother, friend, sister, boss is someone who takes care of their personal needs first. An attempt is made in this paper to design and develop a improved and stable zirconia-dolerite ball plate, having low coefficient of thermal expansion, scratch resistance, high compactness degree with improved flexural strength of 1000 MPa, as shown in Fig. Abstract. Timothy Keagy Cell # Wonderful 3 Bedroom, 2 bath one level stone and. MLS# 13764394. Correlation. They occur as sills, sometimes more than 1,000 feet thick, and as great dikelike intrusions a mile or more wide in the horizontally bedded Permo-Carbon-iferous and Trias-Jura sediments of the island. Dolerite dykes in the Karoo Basin of South Africa are considered part of the primary plumbing system that facilitated the ascent of the mantle-derived magmas for the Drakensberg flood basalts, prior to the break-up of Gondwana during the Jurassic (ca. 5. Viewing the full profile is available to verified healthcare professionals only. Contains 35% to 45% of silica. dolerite translate: 辉绿岩，粗粒玄武岩. In Khanozai–Muslim Bagh area, NW Pakistan, the sills are intruded into mainly Triassic–Jurassic successions of Indian platform sediments. Figure 1. . Dolerite definition: . e. Recon exploration 1995 to 1998; mapping and sampling 2005 to 2008; drilling started in 2010 on porphyry targets: weakly mineralized tonalite porphyry with <1% disseminated and vein chalcopyrite. Delarato is a Ophthalmologist in Sewell, NJ. It is a medium grained igneous rock, and can be dark grey or black with greenish shades in colour. Internally, it is composed of supracrustal. ANTHONY L. 2. Leslie Robert Brown, Hugo Bezuidenhout, in Encyclopedia of the World's Biomes, 2020. 2. Their outcrops cover an area of more than 6,000 square. Geological samples were collected from. dolerite. 1. a type of dark rock that comes from magma (= very hot liquid rock that has cooled): 2. Profile, Reviews, Appointments, Insurances. The dykes are characterized by an MgO content of about 13 wt%, coupled with 13–16 modal percents of olivine. 32 Dolerite Dr is a 2,013 square foot house on a 2,396 square foot lot with 3 bedrooms and 2 bathrooms. The VCA was conducted. This provider currently accepts 120 insurance plans including Medicare and Medicaid. 2 mi) within the crust, and has intermediate grain size and often porphyritic texture between that of volcanic rocks, which are extrusive igneous rocks, and plutonic rocks, which form much deeper in. The first style is D2 shear zone-hosted and correlates with Fimiston-style mineralisation documented in the Golden Mile. , the Golden Valley Sill Complex in the southeastern Karoo Basin (Galerne et al. Extensive Early Permian mafic-ultramafic intrusions, doleritic dykes, and basalts crop out within the Beishan area, southern Central Asian Orogenic Belt (CAOB). Average rating: 3. Dolerite, also called diabase, is a dark igneous rock intermediate in grain size between basalt and gabbro. Ft. High-grade Cu-Au in outcrop at Levisivisi prospect. a type of dark rock that comes from magma (= very hot liquid rock that has cooled): 2. This means that there was less time for crystal growth before it cooled into rock, resulting in the difference in crystal size between the two. (215) 427-8120. Although numerous stable isotope data from major Carlin-type gold deposits in the Youjiang basin have been published, the ore-fluid source remains disputed (Hu et al. Peridotite. Due to a shortage of surface water, groundwater plays an important. , 2020). Christopher's Hospital for Children. Zircons from layered gabbro of Buguriktai massif, a fragment of ophiolite complex, have U Pb age of 560 ± 5 Ma, which was interpreted as a time of SSZ ophiolite formation (Elbaev et al. , 2018). They are petrographically identified as dolerite and lamprophyre. 4 and 5. B. Overall, the average aspect ratio of plagioclase increases from the central part of the sheet toward both the top and. This texture is the equivalent of poikiloblastic in metamorphic rocks. A high whole rock molar Mg# value of ~ 71 and the presence of magnesian olivine phenocrysts (~ Fo78. • One of its distinguishing character is its ophitic texture. Dolerite is a dark igneous rock. Telephone: 010 035 6595 Address: Ground Floor 7 Kyalami Boulevard (Brand Hatch Close) Kyalami Business Park Kyalami 1684Marawa The Amazing IS The Hula-Hoop Queen. Diabase (or dolerite) is a medium-grained igneous rock with basaltic composition. , 1998; Table 3). , 1996, Minor and Mukasa, 1997) published K-Ar, Re-Os and U-Pb ages for the Tasmanian dolerites are generally younger than the oldest parts of the Karoo, supporting a temporal shift of volcanism towards the New Zealand-Australia end of the system (Brauns et al. 4 °C and maximum of 23. Sherry Gregory, Discovery Kids Pre-K/Kindergarten Coordinator: sgregory@scottsdalebible. . Empty. 51 - CRIMINAL CONTEMPT 1 12/16/19693. My Parisian crème brûlée changed things. Citation 1996). A high whole rock molar. This precious book is one part tactical guide, one part deep soul search. 2 Baths. A 1. It is composed of depleted peridotites that host chromitites (Xiong et al. Mekelle. This name reflects the rock’s historical use in sculpture and architecture for its aesthetic and durable qualities. The Early Carboniferous magmatic event in the southern Baltic Sea is manifested by dolerite intrusions. The physical and chemical properties of dolerite make it a versatile material, which can be used as a crushed aggregate in producing concrete and as a road sub-base (Sloane 1991). 2K Followers. The key types of soil formed on dolerite were first outlined by Nicolls (1958) as black clay soils on. Martin J. Dr. GSWA Record 2020/12 Proterozoic dolerite dykes in the western Capricorn Orogen, Western Australia. 1b. 2. g. Practice pleasure as a form of self-care with this empowering, accessible, and inclusive guide to loving your body and your sex life. 1). single family home built in 2009 that was last sold on 11/29/2012. , 1997, Svensen et al. , 1980, Begg, 1989). A methodological proposal for the characterisation of dolerite rock aiming to test a non-destructive and non-invasive analytical approach has been developed. These can include Bronx County death certificates, local and New York State death registries, and the National Death Index. Geologically the largest part of the grassland biome of southern Africa is located on the Karoo Supergroup which is underlain by the Witwatersrand, Ventersdorp and Transvaal Supergroups. P A Udofia. Pumice: finely cellular, light colored. A subvolcanic rock, also known as a hypabyssal rock, is an intrusive igneous rock that is emplaced at depths less than 2 km (1. Similar to other rich intrusions of the Norilsk district, the average value is high (12. Optical microscopy, scanning and transmission electron microscopy,. The DiLoreto Club is an Italian-American social club founded on Oct. Wonderful 3 Bedroom, 2 bath one level stone and vinyl Craf. 89 · 72 ratings · 28 reviews · 3 distinct works • Similar authors. , 2005), and which was terminated by magmatism of the Early Jurassic (ca. ドレライト [1] （ 英: dolerite 、 粗粒玄武岩 [2] ）は、 玄武岩 の 石基 部分の 結晶 が大きくなった 火成岩 。. 183 Ma) Karoo Large Igneous Province (LIP), is considered to have both geothermal and. Nicholas J Delarato is a resident of NJ. ,. intergrown with ilmenite–magnetit. Delarato's phone number, address, insurance information, hospital affiliations and more. Dr. Nearby homes similar to 10009 Dolerite Dr have recently sold between $311K to $540K at an average of $160 per square foot. , Ndougsa-Mbarga, T. C. The meaning of DOLERITE is any of various coarse basalts. It occurs mostly in shallow intrusions (dikes and sills) of basaltic composition. 88. 2,197 Sq. əˌraɪt /) or microgabbro, [1] is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. The cliff's sheer and vertical 100-metre (330 ft) high dolerite rock face is shaped into distinctive vertical columns like organ pipes, which formed 60. limestone in the Shenandoah Valley in the US, from the Hainaut. We have optimized the number of locations for carrying out infiltration tests based on soil type (Fig. raised in Yonkers NY Attended Yonkers schools. This crystal is made up of multiple minerals that include Dolerite, Feldspar. When saprolite is exposed by physical erosion, these concentric layers peel (spall) off as concentric shells much like the. 180 Ma) in this part of southern Africa (Cox, 1992, Encarnación et al. (2008) recently presented major and trace element data on 327 samples from sills and dykes exposed within a restricted area in the Karoo Basin, the Golden Valley Sill Complex (GVSC; Figs 1 and 2). 1,995 Sq. The history of Assam is the history of a confluence of people from the east, west, south and the north; the confluence of the Austroasiatic, Tibeto-Burman (Sino-Tibetan), Tai and Indo-Aryan cultures. Here we present preliminary geochemical data for the dykes in the Tiptur area, WDC and compare them with the dyke swarms in. It improves the durability, texture, and aesthetic qualities of surfaces when used along with a coating system. Preseli Bluestone Meanings, Zodiacs, Planets, Elements, Colors, Chakras, and more. Dr. Nicole Delarato's office locations. The mafic dykes of the present study exhibit several mineralogical changes like clouding of plagioclase feldspars, bastitisation of orthopyroxene, and development of fibrous amphibole (tremolite–actinolite) from. This rock and its location are particularly important to the history of the United Kingdom because the same. Instead of searching for a dress that will only look good on pear shapes, go into a store and try on dresses that match your personal dress style. Ophthalmology • Female • Age 56. If you're only shopping with one body type in mind, you may be losing out on finding the dress that is really you. These. Sulphur isotopes in the Kharaelakh intrusion were studied in 19 samples from KZ-963 drill core. Both speak Spanish. Here, we present a case study from the ca. SOLD APR 13, 2023. PETROLOGY OF TARGET DOLERITE IN THE CHICXULUB PEAK RING AND A POSSIBLE SOURCE OF K/Pg BOUNDARY PICOTITE SPINEL. Lamprophyre is classified as. P. 2014 Tasman National Park, with its towering dolerite cliffs, and Cradle Mountain-Lake St Clair National Park, with its. These often form above a convergent plate boundary where an oceanic plate subducts beneath a continental plate. They may also act as semi- to impermeable barriers to the movement of groundwater. Very little or no feldspar. Philadelphia Magazine "Top Docs" - 2014, 2015; Inside Jersey Magazine "Top Docs" - 2014; Inside Jersey Magazine "Top Docs for Children" - 2014; SJ Magazine "Top Docs for Kids" - 2016, 2017 In the United States and Canada, the name " diabase " is used for a dark gray to black, fine-grained, intrusive igneous rock that has a composition similar to basalt and gabbro. John worked as a Stone mason for many years. Dolerite sill and dyke. 4 beds, 2. dolerites in Tasmania, Australia; and in Britain (including Stonehenge) feldspathic sandstone in the US and Canada. Dolerite is a medium-grained igneous rock with composition similar to basalt and is usually found in dykes or sills. This is a name given to those varieties of what would otherwise be diorite and gabbro which are too fine-grained in character to enable one to tell whether the dark-colored mineral which they contain is hornblende or pyroxene without the use of. Delivered to my table along with a glass of merlot, the dessert’s undisturbed sheet of burnt sugar, with its beautiful amber flakes, stared back at me. Sedimentary rocks such as sandstones, limestone, shale and few mudstones make up the sedimentary. Abstract. SOLD MAY 22, 2023. More than 90% of all volcanic rock on Earth is basalt. Knowledge of the geometry of these types of intrusions are, in general, limited to information gleaned from well and outcrop data. Darlot is situated in the Yandal Greenstone Belt of lower banded iron formations, extensive basalt and. R. Hospital affiliations include St Christopher's Hospital For Children. The differing crystal sizes are due to the different rate of cooling, basalt cools quickly and has a very fine structure, while gabbro cools very. She graduated from Rutgers New Jersey Medical School in 1995. Sixty million years ago a volcano erupted on the supercontinent of Pangaea, feed by a magma plume rising upwards in Earth's mantle. They may. Practice pleasure as a form of self-care with this empowering, accessible, and inclusive guide to loving your body and your sex life. Practice pleasure as a form of self-care with this empowering, accessible, and inclusive guide to loving your body and your sex life. . Dolerite is the name given to the medium-grained intrusive basic igneous rock commonly found in dykes and sills; in North America and continental Europe it is often referred to as diabase, but many authors restrict this term to altered dolerite. revise the orogenic, magmatic and metamorphic evolution of the southern Kalgoorlie Terrane. The dykes are characterized by an MgO content of about 13 wt%, coupled with 13–16 modal percents of olivine. The upper Kayaoka sheet in the Atsumi area, Northeast Japan, has an alkaline-basaltic composition. The plume ripped apart Pangaea, separating Greenland from. a Dolerite consists of augite, plagioclase, and opaque grains with groundmass of olivine. 7. Basalt (UK: / ˈ b æ s ɔː l t,-əl t /; US: / b ə ˈ s ɔː l t, ˈ b eɪ s ɔː l t /) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. Her specialties include Ophthalmology. Also called bitter spar. West Lafayette, IN 47906. 12% of your total square footage. Dimensional stones with a black color occupy a prominent place on the international market. We are a dolerite quarry crushing and producing rock and gravel of all sizes from large landscape rocks and walling stone, down to 10FCR, mixes and clean gravels. 22. The name comes from the Greek diabasis, meaning ‘crossing over’, which is appropriate since this rock is texturally halfway between a gabbro and a basalt. $315,000 Last Sold Price. These deposits form in response to major orogenic events caused by accretion or changes in subduction direction or dip. , 1996, Duncan et al. Nicole Delarato, MD is a board certified ophthalmologist in Sewell, New Jersey. Mary's General Hospital. This home last sold for $318,000 in June 2023. Whole-rock ICP-MS and ICP-AES chemical analyses showed compositions. Constitui-se de piroxênio e plagioclase cálcica. My Pleasure: An Intimate Guide to Loving Your Body and Having Great Sex helps bridge the gap between loving yourself and. $6. AData collection and processing Infiltration. Follow Sierra on IG and Twitter. Diabase or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. 1997). Normally it is not possible to determine the composition of these rocks. 1) unites a diverse group of mineral deposits that form during orogenesis, and include lode gold and Cobar-type Cu-Au-Zn-Pb-Ag deposits. v. Find Dr. The soils form a sequence ranging from a Black Vertosol (P8) to four texture contrast soils,. Practice 160 E Erie Ave Philadelphia, PA 19134. Listen to the audio pronunciation in the Cambridge English Dictionary. Nearby homes similar to 14 Dolerite Dr have recently sold between $265K to $380K at an average of $170 per square foot. , 2001). Operating conditions for the TestAllGeo procedure used to determine the composition of the samples. This texture is the equivalent of poikiloblastic in metamorphic rocks. Dr. , 2012), the total length of the Karoo-Ferrar (KF) province is >. 2 Effect of the Additives on the Compaction Properties of the Soil. Ft. This rock and its location are particularly important to the history of the United Kingdom because the same. She is. Ft. Nearby homes similar to 28 Dolerite Dr have recently sold between $240K to $402K at an average of $170 per square foot. Minerals in this rock include olivine, plagioclase feldspar, pyroxene. Associated with the vast outpouring of lava there was a huge deep plumbing system of molten rock, called magma. Nicole Delarato, MD is an ophthalmology specialist in Philadelphia, PA and has over 27 years of experience in the medical field. The Temté basement in North Cameroon is crosscut by dyke swarms with N 20°–40° trending, including dykes 15–30 m wide, up to 3 km-long. But there is. Ralph K. Frances Delarato is 76 years old and was born on 10/20/1946. We present new geochronological and geochemical data for Gubaoquan dolerite dyke swarms in the Beishan orogenic belt. The Karkloof Plateau is underlain by shale, siltstone and sandstone of the Estcourt Formation (Beaufort Group) and similar lithologies of the Volksrust Formation (Ecca Group) that have been extensively intruded by Jurassic dolerite sills and dykes (Fig. John was predeceased by his father. The Hart Dolerite is the intrusive component of the Hart–Carson Large Igneous Province, which extends over an area of >160,000 km 2 in the Speewah and Kimberley Basins in the western part of the North Australian Craton. 15 - MENACING, 215. The -- sqft single family home is a 3 beds, 2 baths property. $255,000 Last Sold Price. The sample was collected from the Bin quarry, Huntly, Aberdeenshire, where the intrusion displays overturned cumulate layering with compositions varying from gabbro to. , 2005). That girl that makes videos about geology and rocks🌋💎⚒ #tiktoksaboutrocks. • Dolerite is typically found as a hypabyssal igneous rock, typically within dykes, however, it may also occur in sills. As nouns the difference between basalt and dolerite is that basalt is a hard mafic igneous rock of varied mineral content; volcanic in origin, it makes up much of the Earth's oceanic crust while dolerite is a fine-grained basaltic rock. (Citation 2005) and Jakob et al. The newer dolerite dykes around Keonjhar within the Singbhum Granite occur in NE–SW, NW–SE and NNE–SSW trends. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite (dark mafic glass). Diorite is the name used for a group of coarse-grained igneous rocks with a composition between that of granite and basalt. Diorite is the name used for a group of coarse-grained igneous rocks with a composition between that of granite and basalt.