Turbidite

Coquina

Turbidite and Coquina

Turbidite

Coquina

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1 Definition

1.1 Definition

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

Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates

1.2 History

1.2.1 Origin

European Foreland Basins

1.2.2 Discoverer

Arnold H. Bouma

Unknown

1.3 Etymology

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

From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century)

1.4 Class

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Mud-rich, Sandy

Clastic

2.2 Color

Black, Brown, Colourless, Green, Grey, Pink

Beige, Buff, Orange

2.3 Maintenance

Less

2.4 Durability

Durable

Non-Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Dull and Banded

Layered, Banded, Veined and Shiny

3 Uses

3.1 Architecture

3.1.1 Interior Uses

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

Decorative Aggregates, Homes, Hotels, Interior Decoration

3.1.2 Exterior Uses

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

Garden Decoration, Office Buildings

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

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

Building houses or walls, Construction Aggregate

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Cemetery Markers, Creating Artwork

Creating Artwork

4 Types

4.1 Types

Not Available

4.2 Features

High silica content, Host Rock for Lead

Available in Lots of Colors and Patterns, Is one of the oldest rock

4.3 Archaeological Significance

4.3.1 Monuments

Used

4.3.2 Famous Monuments

Data Not Available

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Used

4.4 Fossils

Present

5 Formation

5.1 Formation

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.

Coquina is a sedimentary rock which is formed when billions of small clam-like seashell, called Coquina, or cockleshell are die and hence are deposited, buried and turns into a rock when pressure is applied.

5.2 Composition

5.2.1 Mineral Content

Coesite, Quartz, Sand

Apatite, Augite, Bronzite, Calcite, Chert, Chlorite, Clay Minerals, Epidote, Feldspar, Garnet, Micas, Muscovite or Illite

5.2.2 Compound Content

CaO, Carbon Dioxide, MgO

CaO, Carbon Dioxide, Iron(III) Oxide, MgO

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

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

Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

31-2

1 7

6.1.2 Grain Size

Fine to Coarse Grained

Coarse Grained

6.1.3 Fracture

Splintery

Irregular

6.1.4 Streak

White, Greenish White or Grey

White

6.1.5 Porosity

Very Less Porous

Highly Porous

6.1.6 Luster

Metallic

Dull to Vitreous to Submetallic

6.1.7 Compressive Strength

200.00 N/mm²NA

0.15 450

6.1.8 Cleavage

Disjunctive

Not Available

6.1.9 Toughness

2.4

Not Available

6.1.10 Specific Gravity

2.46-2.731.10-2.24

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

1.6-2.5 g/cm³2.8-2.9 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.92 kJ/Kg KNA

0.14 3.2

6.2.2 Resistance

Heat Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Not Yet Found

7.1.2 Africa

Western Africa

Not Yet Found

7.1.3 Europe

Austria, Belarus, Romania, Switzerland, United Kingdom

United Kingdom

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

USA

7.2.2 South America

Brazil, Colombia

Not Yet Found

7.3 Deposits in Oceania Continent

7.3.1 Australia

New Zealand, Western Australia

Not Yet Found

All about Turbidite and Coquina Properties

Know all about Turbidite and Coquina properties here. All properties of rocks are important as they define the type of rock and its application. Turbidite and Coquina belong to Sedimentary Rocks.Texture of Turbidite is Mud-rich, Sandy whereas that of Coquina is Clastic. Turbidite appears Dull and Banded and Coquina appears Layered, Banded, Veined and Shiny. The luster of Turbidite is metallic while that of Coquina is dull to vitreous to submetallic. Turbidite is available in black, brown, colourless, green, grey, pink colors whereas Coquina is available in beige, buff, orange colors. The commercial uses of Turbidite and Coquina are cemetery markers, creating artwork.