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Turbidite and Gritstone


Gritstone and Turbidite


Definition

Definition
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles  
Gritstone or grit is a hard, coarse-grained, siliceous sandstone  

History
  
  

Origin
European Foreland Basins  
Pennines, England  

Discoverer
Arnold H. Bouma  
J.J. Ferber  

Etymology
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939  
From Grit + Stone  

Class
Sedimentary Rocks  
Sedimentary Rocks  

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

Family
  
  

Group
Not Applicable  
Not Applicable  

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

Texture

Texture
Mud-rich, Sandy  
Earthy  

Color
Black, Brown, Green, Grey, Pink  
Beige, Black, Brown, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
Yes  
Yes  

Acid Resistant
No  
No  

Appearance
Dull and Banded  
Layered and Foliated  

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, Garden Decoration, Office Buildings, Paving Stone  

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

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

Medical Industry
Not Available  
Not Available  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts, Monuments, Sculpture  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Creating Artwork  
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO), Tombstones  

Types

Types
Not Available  
Not Available  

Features
High silica content, Host Rock for Lead  
Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock  

Archaeological Significance
  
  

Monuments
Used  
Used  

Famous Monuments
Not Available  
Not Available  

Sculpture
Used  
Used  

Famous Sculptures
Not Available  
Not Available  

Pictographs
Used  
Not Used  

Petroglyphs
Used  
Not Used  

Figurines
Used  
Used  

Fossils
Present  
Present  

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.  
Gritstone is a type of sedimentary rock which was formed on the floors of wide river deltas where the grit deposits were laid down, with every tide or flood dumping another layer of sediment.   

Composition
  
  

Mineral Content
Coesite, Quartz, Sand  
Calcite, Clay Minerals, Feldspar, Micas, Quartz  

Compound Content
CaO, Carbon Dioxide, MgO  
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide  

Transformation
  
  

Metamorphism
No  
No  

Types of Metamorphism
Not Applicable  
Not Applicable  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
3  
6-7  

Grain Size
Fine to Coarse Grained  
Coarse Grained  

Fracture
Splintery  
Conchoidal  

Streak
White, Greenish White or Grey  
White  

Porosity
Very Less Porous  
Highly Porous  

Luster
Metallic  
Dull  

Compressive Strength
200.00 N/mm2  
10
70.00 N/mm2  
24

Cleavage
Disjunctive  
Perfect  

Toughness
2.4  
Not Available  

Specific Gravity
2.46-2.73  
2.250  

Transparency
Opaque  
Opaque  

Density
1.6-2.5 g/cm3  
2.2 g/cm3  

Thermal Properties
  
  

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

Resistance
Heat Resistant  
Heat Resistant, Impact Resistant, Pressure Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
Not Available  
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan  

Africa
Western Africa  
Namibia, Nigeria, South Africa  

Europe
Austria, Belarus, Romania, Switzerland, United Kingdom  
Austria, Denmark, Germany, Great Britain, Netherlands, Poland, Sweden, Switzerland, United Kingdom  

Others
Not Available  
Greenland  

Deposits in Western Continents
  
  

North America
Canada, USA  
Canada, USA  

South America
Brazil, Colombia  
Brazil  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Western Australia  
New South Wales, New Zealand, Western Australia  

Summary >>
<< Reserves

All about Turbidite and Gritstone Properties

Know all about Turbidite and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Turbidite and Gritstone belong to Sedimentary Rocks.Texture of Turbidite is Mud-rich, Sandy whereas that of Gritstone is Earthy. Turbidite appears Dull and Banded and Gritstone appears Layered and Foliated. The luster of Turbidite is metallic while that of Gritstone is dull. Turbidite is available in black, brown, green, grey, pink colors whereas Gritstone is available in beige, black, brown, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Turbidite are cemetery markers, creating artwork and that of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones.

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