| The group includes melange which consists of greywacke, limestone, pillow lava, gabbro and serpentenite blocks in a black shale matrix. |
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| Permian and Triassic plutonic complexes comprise monzonite, granite, granodiorite or tonalite with minor gabbro and diorite. |
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| The deepest layer is gabbro, coarse-grained but chemically equivalent to basalt, which forms when magma cools and crystallizes slowly. |
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| The highest core recovery occurs in the massive olivine gabbro, which contain lower densities of fractures and are generally undeformed. |
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| A dioritic pod in varitextured gabbro was sampled for U-Pb age determination. |
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| Layne's butterweed grows in open rocky areas of gabbro and serpentine soils within chaparral plant communities. |
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| Jansen also describes gabbro, diabase, ultrabasic rocks and Permian limestones in a comparable section on Naxos. |
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| The stones used include red jasper, white oriental alabaster, yellow chalcedony, and green gabbro. |
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| Contacts between plutons of gabbro or hybrid rock and granite are commonly marked by net-vein complexes. |
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| The normal-sense shears are confined to the gabbro block and may represent relict ocean floor faulting. |
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| The ophiolite contains a complete igneous stratigraphy of serpentinized ultramafics, gabbro, sheeted dykes and pillow lavas, as described by Moores. |
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| Numerous gabbro, granitoïd and of diabase intrusions are seen as dykes, sills and of irregular masses. |
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| The lower gabbro layer has a stratified structure and evidently represents the floor or sides of the magma chamber. |
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| These deformation zones are commonly occupied by intrusive units including syenite, quartz feldspar porphyry, gabbro and lamprophyre. |
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| In Nærøyfjord the underlying rocks are anorthosite and gabbro, and softer phyllite. |
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| This band, composed of pyroxenite and gabbro, is sandwiched between a peridotite intrusion to the north and a band of pegmatite to the South. |
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| These gabbro layers are thought to represent the magma chambers, or pockets of lava, that ultimately erupt on the seafloor. |
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| In some places this layer includes pods of plagiogranite, a differentiated rock richer in silica than gabbro. |
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| The upper portion is a comparatively homogeneous feldspathic gabbro, locally patchy and streaky but not sharply banded. |
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| The batholiths are predominantly granodiorite, but gabbro through granite occur as well. |
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| Mineralized anorthositic gabbro with a distinctive iron-stained gossanous surface occurs near the transition between these two zones. |
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| This anomaly apparently continues southward with increased amplitude as the gabbro gives way to exposed peridotite. |
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| The image below displays a gossan associated with disseminated sulphides in gabbro, melanogabbro at Gumbo Lake. |
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| You will begin in a spotted, very coarse-grained gabbro sill and as you go farther along you will cross over the contact into the dacite. |
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| These occurrences typically display iron carbonate alteration and are spatially related to fine-grained gabbro dykes. |
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| The RM Nickel deposit occurs at the base of the gabbro, near the contact with the underlying andesites. |
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| Disseminated and semi-massive sulphides were also observed in the gabbro before the massive sulphide mineralization. |
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| All the holes were drilled vertically, and commenced in a gabbro unit and ended in andesite. |
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| In the most complete survey of what is called the Rock Hill gabbro, Chalcraft mapped a large area of gabbroic anorthosite at the site where the preserve is located. |
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| The Elmtree Inlier forms a roughly circular pattern near the Madran and Elmtree rivers and includes gabbro, peridotite, and metasedimentary rocks. |
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| The transitional crust of volcanic margins is composed of basaltic igneous rocks, including lava flows, sills, dykes, and gabbro. |
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| Many small quartz-carbonate veins come accross the gabbro. |
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| These zones also control the location of minor bodies of rapakivi in southern Finland and an ophitic gabbro body in the Tallinn zone. |
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| When the magma solidifies within the earth's crust, it cools slowly forming coarse textured rocks, such as granite, gabbro, or diorite. |
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| Alaskan-type ultramafic bodies are roughly circular, comprising a dunite or wehrlite core surrounded by clinopyroxenite, hornblendite, and hornblende gabbro or diorite. |
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| The rocks underlying the Lac à Paul property are part of a mafic to ultramafic sequence including anorthosite, leuconorite, norite, gabbronorite, olivine gabbro, pyroxenite and local peridotite, dunite and magnetitite. |
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| The mineralization was observed to be contained within a NW-trending shear zone that transects an ophitic gabbro intrusion along the southeast wall of the pit. |
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| Diallage is commonly dark green or bronze-coloured and often occurs as large crystals enclosing the silicate olivine in basic to ultrabasic rocks such as gabbro and peridotite. |
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| The hole anchored in bedrock at 10.6 meters and traversed mafic volcanics to the end of the hole at 365.0 meters. From 10.6 meters to 50.3 meters, the hole cut a gabbro and lapilli tuf horizon. |
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| The shear zone is characterized by quartz-carbonate cemented breccia, disseminated acicular arsenopyrite, and quartz-carbonate veining throughout the bleached gabbro. |
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| Within the rugged terrain serpentinized peridotite and gabbro are capped with a thin layer of extrusive basalt. |
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| Reserves of anorthositic gabbro are said to be very large. |
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| These rocks are intruded by metamorphosed gabbro, diabase, and felsic dikes and sills and granite intrusions. |
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| Basaltic magma that cools deeper in the crust is a fine-grained crystalline rock called diabase, which forms vertical sheets or dykes, as well as bodies of gabbro, a coarsely crystalline rock of basaltic composition. |
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| A muted linear magnetic high overlying the western down-faulted segment of the Muskox intrusion, coinciding with granophyre and gabbro, is believed to reflect underlying peridotite. |
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| The aim of the project is to enhancing the supplies of gabbro and limestone, which will be increased by three million tonnes annually. |
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| In both oceanic crust and ophiolites, the gabbro layer is underlain by the mantle, which extends thousands of kilometers down to Earth's core. |
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| The copper occurs in coarse grained gabbro along the contact of the Coldwell Complex similar to the Marathon Deposit. |
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| This area was the source of anorthosite gneiss and the gabbro or diorite gneiss from which many royal statues were carved. |
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| Here the gabbro formed first, followed by intrusion of the granite, followed by intrusion of the quartz veins which crosscut both the granite and the gabbro. |
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| However, diamond drill holes didn't intersect mineralization with significant grades in the mineralized zones hosted by lithologies dominantly composed of mafic volcanic rocks and gabbro or syenite intrusions. |
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| At the periphery of this replacement body, thin lenses of relatively massive pyrite are parallel to schistosity in the gabbro. |
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| The inner trench slope of these convergent margins exposes the crust of the forearc, including basalt, gabbro, and serpentinized mantle peridotite. |
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| By contrast, more mafic rocks, such as tonalite, gabbro and diorite, have 1 to 5 ppm uranium, and limestones and sedimentary rocks usually have equally low amounts. |
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| According to the report, Oman's mines have huge quantities of industrial metals such as limestone, dolomite, gypsum, gabbro rocks and quartzite rocks. |
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| The Black Cuillin, which are mainly composed of basalt and gabbro, include twelve Munros and provide some of the most dramatic and challenging mountain terrain in Scotland. |
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| Work at Merrivale continued until the 1990s, for the last 20 years imported stone such as gabbro from Norway and Italian marble was dressed and polished. |
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| Based on this drilling, two mineralized centers are recognized along a north striking breccia body,, separated by a post-mineralization intrusive gabbro body. |
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| The most distinctive feature is the ultrabasic ophiolite, peridotite and gabbro on Unst and Fetlar, which are remnants of the Iapetus Ocean floor. |
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| Numerous granite intrusions and outcrops of rhyolite form prominent hills such as Yr Eifl, whilst gabbro is found at the west end of Porth Neigwl. |
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| They are pecked or abraded on heavily jointed and fractured gabbro and granophyre igneous rock surfaces that have weathered into massive linear piles. |
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| Magma that remains trapped in large quantities below ground cools most slowly resulting in rocks with larger crystals, such as granite and gabbro. |
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