Dacite and Turbidite

Dacite

Turbidite

Turbidite and Dacite

Definition

Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite

A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles

History

Origin

Romania and Moldova, Europe

European Foreland Basins

Discoverer

Unknown

Arnold H. Bouma

Etymology

From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described

From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Soft Rock

Family

Group

Volcanic

Not Applicable

Other Categories

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Texture

Aphanitic to Porphyritic

Mud-rich, Sandy

Color

Bluish - Grey, Brown, Grey, Light to Dark Grey

Black, Brown, Colourless, Green, Grey, Pink

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Wind Resistant

Yes

Acid Resistant

Appearance

Vesicular

Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration

Bathrooms, Countertops, Decorative Aggregates, Flooring, Homes, Interior Decoration

Exterior Uses

As Building Stone, Paving Stone, Garden Decoration

As Building Stone, As Facing Stone, Paving Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

Cemetery Markers, Creating Artwork

Types

Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite

Not Available

Features

Host Rock for Lead, Is one of the oldest rock

High silica content, Host Rock for Lead

Archaeological Significance

Monuments

Not Yet Used

Used

Famous Monuments

Not Applicable

Data Not Available

Sculpture

Not Yet Used

Used

Famous Sculptures

Not Applicable

Data Not Available

Pictographs

Used

Petroglyphs

Used

Figurines

Not Yet Used

Used

Fossils

Absent

Present

Formation

Dacitic magma is formed by the subduction of young oceanic crust under a thick felsic continental plate. Further, the Oceanic crust is hydrothermally altered as quartz and sodium are added.

Turbidite is a type of sedimentary rock formed when a river carries or transports pieces of broken rock as it flows. These particles then settle down and are subjected to high temperature and pressures hence forming Turbidite.

Composition

Mineral Content

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon

Coesite, Quartz, Sand

Compound Content

Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide

CaO, Carbon Dioxide, MgO

Transformation

Metamorphism

Yes

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Not Applicable

Weathering

Yes

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Yes

Types of Erosion

Chemical Erosion

Chemical Erosion, Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

2-2.25

Grain Size

Medium to Fine Coarse Grained

Fine to Coarse Grained

Fracture

Conchoidal

Splintery

Streak

White

White, Greenish White or Grey

Porosity

Less Porous

Very Less Porous

Luster

Subvitreous to Dull

Metallic

Compressive Strength

Not Available

200.00 N/mm²

Cleavage

Perfect

Disjunctive

Toughness

Not Available

2.4

Specific Gravity

2.86-2.87

2.46-2.73

Transparency

Translucent

Opaque

Density

2.77-2.771 g/cm³

1.6-2.5 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

Not Yet Found

Africa

Not Yet Found

Western Africa

Europe

France, Greece, Romania, Scotland, Spain

Austria, Belarus, Romania, Switzerland, United Kingdom

Others

Not Yet Found

Deposits in Western Continents

North America

USA

Canada, USA

South America

Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Brazil, Colombia

Deposits in Oceania Continent

Australia

New Zealand, South Australia, Western Australia

New Zealand, Western Australia

Summary >>

<< Reserves

All about Dacite and Turbidite Properties

Know all about Dacite and Turbidite properties here. All properties of rocks are important as they define the type of rock and its application. Dacite belongs to Igneous Rocks while Turbidite belongs to Sedimentary Rocks.Texture of Dacite is Aphanitic to Porphyritic whereas that of Turbidite is Mud-rich, Sandy. Dacite appears Vesicular and Turbidite appears Dull and Banded. The luster of Dacite is subvitreous to dull while that of Turbidite is metallic. Dacite is available in bluish - grey, brown, grey, light to dark grey colors whereas Turbidite is available in black, brown, colourless, green, grey, pink colors. The commercial uses of Dacite are commemorative tablets, creating artwork and that of Turbidite are cemetery markers, creating artwork.