| The lower series consists of alternating basalt lava, tuff breccia, tufite, and siliceous rock, whereas the upper one is dominated by diabase. |
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| Jansen also describes gabbro, diabase, ultrabasic rocks and Permian limestones in a comparable section on Naxos. |
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| If natural stone, such as basalt or diabase, is used, the product is called rock wool. |
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| Intrusion of diabase at Mt. Butters has resulted in low-grade contact metamorphism of the pre-existing sedimentary strata. |
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| I started associating different matters with granit and diabase when I created objects and landscapes. |
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| Numerous gabbro, granitoïd and of diabase intrusions are seen as dykes, sills and of irregular masses. |
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| Many such dikes in western Maine are classified as alkali diabase. |
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| Micropegmatite often occurs in granite and diabase and composes all or a large part of granophyre. |
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| It consists of uplifted Proterozoic sedimentary rocks intruded by Late Proterozoic diabase dykes and sills. |
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| The area is underlain by rocks of the Abitibi Subprovince intruded by Proterozoic diabase dykes with a number of different trends and ages. |
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| The rocks are Archean in Age, except for a series of diabase dykes from the Proterozoic Period. |
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| Quartz diabase grades upward into hypersthene diabase, which forms up to two-thirds of the sill thickness. |
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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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| Instead of highlands, there are several linear outcroppings including Black Brook Escarpment south of Dalhousie where a narrow resistant ridge of rock called diabase intrudes the landscape. |
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| It led me to explore imprints in granit and black diabase. |
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| The bedrock in the area is dominated by porphyritic, pillowed and locally magnetic basalts, cut by diorite intrusions, felsic porphyry intrusions, and a swarm of NE-trending diabase dykes. |
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| These rocks are intruded by metamorphosed gabbro, diabase, and felsic dikes and sills and granite intrusions. |
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| It is manufactured in a blast furnace fed with diabase rock which contains very low levels of metal oxides. |
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| The hypersthene diabase grades upward into diabase with variable texture and grain size, and is locally aplitic, granophyric or pegmatitic. |
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| Where the diabase is exposed at the surface, it weathers into a well-drained, dark purple soil known as terra roxa, famous as a producer of coffee. |
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