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Turbidite and Pseudotachylite


Pseudotachylite and Turbidite


Definition

Definition
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles  
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.  

History
  
  

Origin
European Foreland Basins  
USA  

Discoverer
Arnold H. Bouma  
Unknown  

Etymology
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939  
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.  

Class
Sedimentary Rocks  
Metamorphic Rocks  

Sub-Class
Durable Rock, Soft Rock  
Durable Rock, Hard Rock  

Family
  
  

Group
-  
-  

Other Categories
Coarse Grained Rock, Fine Grained Rock, Opaque Rock  
Fine Grained Rock, Opaque Rock  

Texture

Texture
Mud-rich, Sandy  
Quench  

Color
Black, Brown, Green, Grey, Pink  
Black, Brown, Green, Grey, Pink, White  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
No  
No  

Wind Resistant
Yes  
Yes  

Acid Resistant
No  
Yes  

Appearance
Dull and Banded  
Dull and Soft  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

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

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts, Monuments  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Creating Artwork  
Creating Artwork, Gemstone  

Types

Types
Sedimentary rock  
Cataclastic rock  

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

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.  
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Pseudotachylite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.  

Composition
  
  

Mineral Content
Coesite, Quartz, Sand  
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides  

Compound Content
CaO, Carbon Dioxide, MgO  
Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur  

Transformation
  
  

Metamorphism
No  
Yes  

Types of Metamorphism
-  
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism  

Weathering
Yes  
No  

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering  
-  

Erosion
Yes  
No  

Types of Erosion
Chemical Erosion, Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion  
-  

Properties

Physical Properties
  
  

Hardness
3  
7  

Grain Size
Fine to Coarse Grained  
Very fine-grained  

Fracture
Splintery  
Uneven  

Streak
White, Greenish White or Grey  
Light to dark brown  

Porosity
Very Less Porous  
Less Porous  

Luster
Metallic  
Vitreous  

Compressive Strength
200.00 N/mm2  
13
60.00 N/mm2  
37

Cleavage
Disjunctive  
-  

Toughness
2.4  
-  

Specific Gravity
2.46-2.73  
2.46-2.86  

Transparency
Opaque  
Transparent to Translucent  

Density
1.6-2.5 g/cm3  
2.7-2.9 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K  
10
0.92 kJ/Kg K  
10

Resistance
Heat Resistant  
Heat Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
-  
South Korea  

Africa
Western Africa  
Western Africa  

Europe
Austria, Belarus, Romania, Switzerland, United Kingdom  
Great Britain, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
-  

South America
Brazil, Colombia  
-  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Western Australia  
Central Australia, Western Australia  

Summary >>
<< Reserves

All about Turbidite and Pseudotachylite Properties

Know all about Turbidite and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Turbidite belongs to Sedimentary Rocks while Pseudotachylite belongs to Metamorphic Rocks.Texture of Turbidite is Mud-rich, Sandy whereas that of Pseudotachylite is Quench. Turbidite appears Dull and Banded and Pseudotachylite appears Dull and Soft. The luster of Turbidite is metallic while that of Pseudotachylite is vitreous. Turbidite is available in black, brown, green, grey, pink colors whereas Pseudotachylite is available in black, brown, green, grey, pink, white colors. The commercial uses of Turbidite are cemetery markers, creating artwork and that of Pseudotachylite are creating artwork, gemstone.

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