The use of diabase

diabase | rock | Britannica

diabase, also called Dolerite, fine- to medium-grained, dark gray to black intrusive igneous rock. It is extremely hard and tough and is commonly quarried for crushed stone, under the name of trap. Although not popular, it makes an excellent monumental stone and is one of the dark-coloured rocks commercially known as black granite. Diabase is widespread and occurs in dikes …

SciELO

Analysis of the geometry of diabase sills of the Serra Geral magmatism, by 2D seismic interpretation, in Guareí region, São Paulo, Paraná basin, Brazil Análise da geometria de soleiras de diabásio do magmatismo Serra Geral, por interpretação sísmica 2D, na região de Guareí, São Paulo, Bacia do Paraná, Brasil.

On the Use of the Terms "Diabase" and "Dolerite"

The terms "diabase" and "dolerite" are used with various meanings in different countries. In this paper the development of the terms is traced. Skip to search form Skip to main content Skip to account menu >

Silicate composites modified with the use of diabase and …

The use of modifiers at 10% (5% of diabase and 5% of barite) contributes to the improvement of bulk density from 1.821 to 2.189 g/cm 3 . This approximates the proper design of the material in terms of heat-humidity and reduces energy consumption in buildings.

Origin of the diabase dykes from the Baolun gold deposit …

2020-2-13 · The diabase dykes in the Baolun deposit have been dated at 231.6±2.6Ma through SHRIMP U-Pb zircon method, which is close to the crystallization age of the Jianfengling granite (236±3.5Ma~249±5Ma).

Diabase (PAJd;0)

Geologic unit mapped in Pennsylvania: Medium- to coarse-grained, quartz-normative tholeiite; composed of labradorite and various pyroxenes; occurs as dikes, sheets, and a few small flows. Includes the dark-gray York Haven Diabase (high titanium oxide) and the slightly younger Rossville Diabase (low titanium oxide). In chilled margins, the Rossville is distinguished from …

Diabase: A dark-colored, fine-grained intrusive …

Here are two facts about diabase and its commercial use: 1) The plagioclase in diabase is often of the labradorite variety. Diabase from some quarries contains abundant crystals of labradorite that are capable of producing colorful …

Silicate composites modified with the use of diabase and …

Silicate components containing 10% of the diabase aggregate and 10% of barite aggregate achieve a compression strength of more than 8 MPa higher than the reference specimen. The use of modifiers at 10% (5% of diabase and 5% of barite) contributes to the improvement of bulk density from 1.821 to 2.189 g/cm3.

Diabase definition and meaning | Collins English Dictionary

Diabase definition: an altered dolerite | Meaning, pronunciation, translations and examples

Geology and Geochemistry of Triassic Diabase in …

Abstract. Based on chemical composition and mineralogy, three types of Triassic diabase are recognized in Pennsylvania. The probable oldest type (Quarryville type) occurs as an olivine tholeiite dike swarm. The York Haven type is a quartz tholeiite, forming sheets, dikes, and a few flows. The youngest Rossville type is also quartz tholeiite ...

Diabase

Diabase is composed of plagioclase feldspar (mostly labradorite) and pyroxene ().The crystals that make up dolerite are usually visible to the naked eye, but sometimes porphyritic rocks of basaltic composition with pyroxene and …

Benchtop CNC Mill/3D Printer | Diabase Engineering

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On the Use of the Terms "Diabase" and "Dolerite" | The …

2019-10-4 · The terms "diabase" and "dolerite" are used with various meanings in different countries. In this paper the development of the terms is traced. On the Use of the Terms "Diabase" and "Dolerite" | The Journal of Geology: Vol 35, No 3

diabase_diabase

Diabase or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. In North American usage, the term diabase refers to the fresh rock, whilst elsewhere the term dolerite is used for the fresh rock and diabase refers to altered material. …

Diabase vs Gabbro: What Are They, And What''s The …

Diabase is also commonly quarried for use in landscaping or as an ornamental stone. Additionally, diabase is often mined for its metal ores, such as copper and nickel. Overall, diabase is a versatile and useful rock that has played an important role in human civilization throughout history.

Diabase dikes of the Franklin Furnace, New Jersey, …

Two of the numerous small dikes mapped on the areal geology sheet of the Franklin Furnace Folio (U.S. Geological Survey 161) as "Mostly basic, including nepheline tinguaite, leucite tinguaite, and ...

Diabase: Mineral information, data and localities.

A synonym of Dolerite. In the United States, an intrusive rock whose main components are labradorite and pyroxene and that is characterized by ophitic texture. As originally applied by Brongniart in 1807, the term corresponded to what is now recognized as diorite. The word has come to mean a pre-Tertiary basalt in Germany, a decomposed basalt ...

The Degree of Alteration and Geomechanical Properties of …

1995-1-1 · A statistical analysis was used in examining the relationships between the unified alteration index and the geomechanical properties of diabase. A relationship was established between the unified alteration index (K vc ) and the compression wave velocity (C p ) in the form of: K vc = 1.18 − 3.00e − 4C p + 1.84e − 8C p 2 (r 2 = 0.91).

Diabase: Description, Characteristics, and Other FAQs

Therefore, diabase is a rock because it is made up of the minerals plagioclase feldspar and pyroxene. Is Diabase Valuable? The value of diabase varies depending on its intended purpose. For example, dimension stone that is cut and polished for …

Why do we use diabase?

Why do we use diabase? Asked by: Eliane Yundt. Score: 4.6/5 (57 votes) Despite its high density, diabase has a very important role to play in North Carolina geology. Because of how easily diabase cracks, in the Piedmont it is a major aquifer stone, storing and transmitting an incredible amount of groundwater under our feet.

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Diabase

2022-5-16 · Diabase (also known as dolerite or microgabbro) is an igneous rock that is often blue in colour. It is rich in magnesium and iron. Dikes and sills in igneous rock are often made of diabase.. Diabase is mostly a silicate feldspar known as labradorite (about 40% to 70%). Most of the rest is pyroxene minerals (usually augite). Small amounts of hornblende, olivine, …

Diabase or dolerite – Geology is the Way

2022-6-19 · Diabase (or dolerite) is a medium-grained igneous rock with basaltic composition. The term is also synonym of microgabbro. 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.Dolerite has a similar origin, from the Greek doleros, deceptive.. Diabase are …

Diabase

Diabase: Description, Characteristics, and Other FAQs