Turbidite

Picrite

Turbidite and Picrite

Turbidite

Picrite

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Definition

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

Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine

History

Origin

European Foreland Basins

Hawaii Islands

Discoverer

Arnold H. Bouma

Unknown

Etymology

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

From Greek pikros bitter + -ite, 19th century

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Mud-rich, Sandy

Earthy, Rough

Color

Black, Brown, Green, Grey, Pink

Black, Brown, Green, Grey, Pink, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Banded

Rough and Shiny

Uses

Architecture

Interior Uses

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

Countertops, Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

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

As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, for Road Aggregate, Manufacture of Magnesium and Dolomite Refractories, Roadstone, Used for flooring, stair treads, borders and window sills.

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

As a Feed Additive for Livestock, As armour rock for sea walls, Metallurgical Flux, Pottery, Source of Magnesia (MgO)

Types

Sedimentary rock

Oceanite

Features

High silica content, Host Rock for Lead

Host Rock for Lead

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

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.

Picrite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Composition

Mineral Content

Coesite, Quartz, Sand

Biotite, Olivine, Plagioclase, Pyrrhotite

Compound Content

CaO, Carbon Dioxide, MgO

Al, CaO, Carbon Dioxide, Mg, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

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

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

Properties

Physical Properties

Hardness

36.8

1 7

👆🏻

Grain Size

Fine to Coarse Grained

Fine Grained

Fracture

Splintery

Uneven

Streak

White, Greenish White or Grey

Porosity

Very Less Porous

Less Porous

Luster

Metallic

Subvitreous to Dull

Compressive Strength

200.00 N/mm²189.00 N/mm²

0.15 450

👆🏻

Cleavage

Disjunctive

Toughness

2.4

2.1

Specific Gravity

2.46-2.732.75-2.92

0 8.4

👆🏻

Transparency

Opaque

Density

1.6-2.5 g/cm³1.5-2.5 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.88 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

Africa

Western Africa

South Africa

Europe

Austria, Belarus, Romania, Switzerland, United Kingdom

Iceland

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil, Colombia

Brazil

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

All about Turbidite and Picrite Properties

Know all about Turbidite and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Turbidite belongs to Sedimentary Rocks while Picrite belongs to Igneous Rocks.Texture of Turbidite is Mud-rich, Sandy whereas that of Picrite is Earthy, Rough. Turbidite appears Dull and Banded and Picrite appears Rough and Shiny. The luster of Turbidite is metallic while that of Picrite is subvitreous to dull. Turbidite is available in black, brown, green, grey, pink colors whereas Picrite is available in black, brown, green, grey, pink, white, yellow colors. The commercial uses of Turbidite are cemetery markers, creating artwork and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).