Turbidite and Tachylite
Definition
Definition
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt
History
Origin
European Foreland Basins
Iceland
Discoverer
Arnold H. Bouma
Unknown
Etymology
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939
From German Tachylite, from tachy- + Greek lutos soluble, melting
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
Not Applicable
Volcanic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Texture
Texture
Mud-rich, Sandy
Vitreous
Color
Black, Brown, Colourless, Green, Grey, Pink
Black, Dark Brown
Maintenance
Less
More
Durability
Durable
Durable
Water Resistant
Yes
Yes
Scratch Resistant
Yes
No
Stain Resistant
No
No
Wind Resistant
Yes
Yes
Acid Resistant
No
Yes
Appearance
Dull and Banded
Glassy
Uses
Architecture
Interior Uses
Bathrooms, Countertops, Decorative Aggregates, Flooring, Homes, Interior Decoration
Decorative Aggregates, 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
Curbing
Industry
Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement
Cutting Tool, Knives, Landscaping, Scrapers
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts
Other Uses
Commercial Uses
Cemetery Markers, Creating Artwork
Cemetery Markers, Creating Artwork
Types
Types
Not Available
Not Available
Features
High silica content, Host Rock for Lead
Available in Lots of Colors and Patterns, Clasts are smooth to touch, NA
Archaeological Significance
Monuments
Used
Not Yet Used
Famous Monuments
Data Not Available
Not Applicable
Sculpture
Used
Not Yet Used
Famous Sculptures
Data Not Available
Not Applicable
Pictographs
Used
Used
Petroglyphs
Used
Used
Figurines
Used
Not Yet Used
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.
Tachylite 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
Feldspar, Olivine
Compound Content
CaO, Carbon Dioxide, MgO
Fe, Mg
Transformation
Metamorphism
No
Yes
Types of Metamorphism
Not Applicable
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
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, Sea Erosion, Water Erosion, Wind Erosion
Properties
Physical Properties
Hardness
3
5.5
Grain Size
Fine to Coarse Grained
Medium to Fine Coarse Grained
Fracture
Splintery
Conchoidal
Streak
White, Greenish White or Grey
Vermilion
Porosity
Very Less Porous
Less Porous
Luster
Metallic
Resinous
Compressive Strength
200.00 N/mm2
10
206.00 N/mm2
8
Cleavage
Disjunctive
Not Available
Toughness
2.4
Not Available
Specific Gravity
2.46-2.73
2.4
Transparency
Opaque
Opaque
Density
1.6-2.5 g/cm3
3.058 g/cm3
Thermal Properties
Specific Heat Capacity
0.92 kJ/Kg K
10
0.56 kJ/Kg K
22
Resistance
Heat Resistant
Heat Resistant, Impact Resistant, Wear Resistant
Reserves
Deposits in Eastern Continents
Asia
Not Yet Found
Cambodia, Russia, South Korea
Africa
Western Africa
East Africa
Europe
Austria, Belarus, Romania, Switzerland, United Kingdom
England, Germany, Hungary, Iceland, Scotland, Sweden
Others
Not Yet Found
Hawaii Islands
Deposits in Western Continents
North America
Canada, USA
USA
South America
Brazil, Colombia
Not Yet Found
Deposits in Oceania Continent
Australia
New Zealand, Western Australia
Victoria
All about Turbidite and Tachylite Properties
Know all about Turbidite and Tachylite properties here. All properties of rocks are important as they define the type of rock and its application. Turbidite belongs to Sedimentary Rocks while Tachylite belongs to Igneous Rocks.Texture of Turbidite is Mud-rich, Sandy whereas that of Tachylite is Vitreous. Turbidite appears Dull and Banded and Tachylite appears Glassy. The luster of Turbidite is metallic while that of Tachylite is resinous. Turbidite is available in black, brown, colourless, green, grey, pink colors whereas Tachylite is available in black, dark brown colors. The commercial uses of Turbidite and Tachylite are cemetery markers, creating artwork.
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