Marl

Laterite

Marl and Laterite

Marl

Laterite

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Definition

Marl is an unconsolidated sedimentary rock consisting of clay and lime

Laterite rock is a type of Sedimentary rock which is rich in iron and aluminium, formed in hot and wet tropical areas

History

Origin

India

Discoverer

William Smith

Francis Buchanan-Hamilton

Etymology

From Old French marle, from Late Latin marglia

From Latin later brick, tile + -ite1

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Soft Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Earthy

Earthy, Massive, Porphyritic

Color

Beige, Brown, Green, Grey, White

Brown, Buff, Red

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Dull

Rough and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles

Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

As Building Stone, Roof Tiles

As Building Stone, As Facing Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

Cobblestones, for Road Aggregate, Landscaping, Roadstone

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Soil Conditioner

An Oil and Gas Reservoir, Source of bauxite, Used in aquariums

Types

Clay Marl ,Blue Marl, Red Marl, High Bank Marl, Shell Layer Marl, Under Shell Layer Marl, Sand Marl, Green Marl, Grey Marl and Clayey Marl

Laterite

Features

Generally rough to touch, Is one of the oldest rock, Splintery, Very fine grained rock

Is one of the oldest rock, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Formation

Marl forms when very fine-grained clay particles are deposited in water which settles at the bottom of water bodies and are compacted by overlying sediment; the water squeezes out and hence forming Marl rock.

Laterite is a type of sedimentary rock which is generally a reddish weathering product of basalt.

Composition

Mineral Content

Calcite, Clay, Dolomite, Gypsum, Micas, Pyrite, Quartz

Aluminum Oxides, Biotite, Hematite, Hornblade, Iron Oxides, Manganese Oxides, Micas, Muscovite or Illite, Plagioclase, Pyroxene

Compound Content

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

2-32

1 7

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Grain Size

Very fine-grained

Fine Grained

Fracture

Conchoidal

Streak

White

Porosity

Highly Porous

Luster

Dull

Compressive Strength

30.00 N/mm²5.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.6

Specific Gravity

2.2-2.8-9999

0 8.4

👆🏻

Transparency

Opaque

Density

2.4-2.8 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.80 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Pakistan, Russia

India

Africa

Ethiopia, Kenya, Morocco, South Africa

East Africa, Western Africa

Europe

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland

England, Romania, Scotland

Others

Deposits in Western Continents

North America

USA

Canada, USA

South America

Colombia, Ecuador, Peru

Deposits in Oceania Continent

Australia

New South Wales, Victoria, Western Australia

Central Australia, Western Australia

All about Marl and Laterite Properties

Know all about Marl and Laterite properties here. All properties of rocks are important as they define the type of rock and its application. Marl and Laterite belong to Sedimentary Rocks.Texture of Marl is Earthy whereas that of Laterite is Earthy, Massive, Porphyritic. Marl appears Rough and Dull and Laterite appears Rough and Banded. The luster of Marl and Laterite is dull. Marl is available in beige, brown, green, grey, white colors whereas Laterite is available in brown, buff, red colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Laterite are an oil and gas reservoir, source of bauxite, used in aquariums.