Shale

Turbidite

Shale and Turbidite

Shale

Turbidite

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Definition

Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles

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

History

Origin

European Foreland Basins

Discoverer

Johann Gottlob Lehmann

Arnold H. Bouma

Etymology

From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,

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

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Texture

Clastic, Splintery

Mud-rich, Sandy

Color

Black, Brown, Buff, Green, Grey, Red, Yellow

Black, Brown, Green, Grey, Pink

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Muddy

Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration

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

Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

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

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

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

Medical Industry

Antiquity Uses

Artifacts, Sculpture

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Pottery

Cemetery Markers, Creating Artwork

Types

Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale

Sedimentary rock

Features

Easily splits into thin plates, Generally rough to touch, Very fine grained rock

High silica content, Host Rock for Lead

Archaeological Significance

Monuments

Famous Monuments

Jantar Mantar in India

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Formation

Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.

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

Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides

Coesite, Quartz, Sand

Compound Content

Ca, Fe, Mg, Silicon Dioxide, Sodium

CaO, Carbon Dioxide, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

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

Properties

Physical Properties

Hardness

1 7

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Grain Size

Very fine-grained

Fine to Coarse Grained

Fracture

Splintery

Streak

White

White, Greenish White or Grey

Porosity

Highly Porous

Very Less Porous

Luster

Dull

Metallic

Compressive Strength

95.00 N/mm²200.00 N/mm²

0.15 450

👆🏻

Cleavage

Slaty

Disjunctive

Toughness

2.6

2.4

Specific Gravity

2.2-2.82.46-2.73

0 8.4

👆🏻

Transparency

Opaque

Density

2.4-2.8 g/cm³1.6-2.5 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.39 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

Bangladesh, China, India, Russia

Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

Western Africa

Europe

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland

Austria, Belarus, Romania, Switzerland, United Kingdom

Others

Deposits in Western Continents

North America

USA

Canada, USA

South America

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Brazil, Colombia

Deposits in Oceania Continent

Australia

New South Wales, New Zealand, Queensland, Victoria, Western Australia

New Zealand, Western Australia

All about Shale and Turbidite Properties

Know all about Shale and Turbidite properties here. All properties of rocks are important as they define the type of rock and its application. Shale and Turbidite belong to Sedimentary Rocks.Texture of Shale is Clastic, Splintery whereas that of Turbidite is Mud-rich, Sandy. Shale appears Muddy and Turbidite appears Dull and Banded. The luster of Shale is dull while that of Turbidite is metallic. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Turbidite is available in black, brown, green, grey, pink colors. The commercial uses of Shale are creating artwork, pottery and that of Turbidite are cemetery markers, creating artwork.