Turbidite

Porphyry

Turbidite and Porphyry

Turbidite

Porphyry

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Definition

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

Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix

History

Origin

European Foreland Basins

Egypt

Discoverer

Arnold H. Bouma

Unknown

Etymology

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

From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Mud-rich, Sandy

Porphyritic

Color

Black, Brown, Green, Grey, Pink

Black, Brown, Green, Grey, Red, Rust, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Banded

Dull

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

Garden Decoration, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Construction Aggregate

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

Creating Artwork, Gemstone, Jewelry

Types

Sedimentary rock

Rhomb Porphyry

Features

High silica content, Host Rock for Lead

Generally rough to touch, Is one of the oldest rock, Surfaces are often shiny

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.

Porphyry is formed in two stages: the magma cools slowly deep within the crust or the magma is cools rapidly as it erupts from a volcano, creating small grains that are usually invisible to naked eye.

Composition

Mineral Content

Coesite, Quartz, Sand

Biotite, Chert, Feldspar, Garnet, Graphite, Quartz, Silica

Compound Content

CaO, Carbon Dioxide, MgO

Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

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

Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

36-7

1 7

👆🏻

Grain Size

Fine to Coarse Grained

Fine Grained

Fracture

Splintery

Irregular

Streak

White, Greenish White or Grey

White

Porosity

Very Less Porous

Less Porous

Luster

Metallic

Dull

Compressive Strength

200.00 N/mm²150.00 N/mm²

0.15 450

👆🏻

Cleavage

Disjunctive

Toughness

2.4

1.7

Specific Gravity

2.46-2.732.5-4

0 8.4

👆🏻

Transparency

Opaque

Translucent to Opaque

Density

1.6-2.5 g/cm³2.5-2.52 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.71 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Impact Resistant

Reserves

Deposits in Eastern Continents

Asia

China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam

Africa

Western Africa

Egypt, Ethiopia, Ghana, South Africa

Europe

Austria, Belarus, Romania, Switzerland, United Kingdom

Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

Canada, Cuba, Jamaica, USA

South America

Brazil, Colombia

Bolivia, Brazil, Colombia, Ecuador, Paraguay

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

New South Wales, New Zealand, Western Australia

All about Turbidite and Porphyry Properties

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