Definition
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
Origin
European Foreland Basins
Germany
Discoverer
Arnold H. Bouma
Van Tooren
Etymology
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939
From Greek tephra, ashes from Indo-European base, to burn
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Other Categories
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Texture
Mud-rich, Sandy
Aphanitic to Porphyritic
Color
Black, Brown, Green, Grey, Pink
Black, Brown, Green, Grey, White
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Dull and Banded
Vesicular
Interior Uses
Bathrooms, Countertops, Decorative Aggregates, Flooring, Homes, Interior Decoration
Decorative Aggregates, Flooring, Homes, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
Other Architectural Uses
Curbing
Curbing
Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement
Landscaping
Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts, Sculpture
Commercial Uses
Cemetery Markers, Creating Artwork
Production of Lime, Soil Conditioner
Types
Sedimentary rock
Igneous rock
Features
High silica content, Host Rock for Lead
Host Rock for Lead
Archaeological Significance
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.
Tephrite 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.
Mineral Content
Coesite, Quartz, Sand
Alkali feldspar, Nepheline, Plagioclase, Pyroxene
Compound Content
CaO, Carbon Dioxide, MgO
CaO, Carbon Dioxide, MgO, Silicon Dioxide
Types of Metamorphism
-
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
Chemical Erosion, Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion
Grain Size
Fine to Coarse Grained
Medium to Fine Coarse Grained
Fracture
Splintery
Uneven
Streak
White, Greenish White or Grey
Bluish Black
Porosity
Very Less Porous
Very Less Porous
Luster
Metallic
Subvitreous to Dull
Cleavage
Disjunctive
Crenulation and Pervasive
Specific Gravity
2.46-2.73
2.86
Transparency
Opaque
Opaque
Density
1.6-2.5 g/cm3
2.8-2.9 g/cm3
Resistance
Heat Resistant
Heat Resistant, Impact Resistant
Deposits in Eastern Continents
Africa
Western Africa
Namibia, Uganda
Europe
Austria, Belarus, Romania, Switzerland, United Kingdom
Germany, Hungary, Italy, Portugal, Spain
Deposits in Western Continents
North America
Canada, USA
USA
South America
Brazil, Colombia
-
Deposits in Oceania Continent
Australia
New Zealand, Western Australia
New Zealand, Western Australia
All about Turbidite and Tephrite Properties
Know all about Turbidite and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Turbidite belongs to Sedimentary Rocks while Tephrite belongs to Igneous Rocks.Texture of Turbidite is Mud-rich, Sandy whereas that of Tephrite is Aphanitic to Porphyritic. Turbidite appears Dull and Banded and Tephrite appears Vesicular. The luster of Turbidite is metallic while that of Tephrite is subvitreous to dull. Turbidite is available in black, brown, green, grey, pink colors whereas Tephrite is available in black, brown, green, grey, white colors. The commercial uses of Turbidite are cemetery markers, creating artwork and that of Tephrite are production of lime, soil conditioner.