Conglomerate

Marl

Conglomerate and Marl

Conglomerate

Marl

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Definition

Conglomerate is a sedimentary rock which forms from rounded gravel and boulder sized clasts which are cemented together in a matrix

Marl is an unconsolidated sedimentary rock consisting of clay and lime

History

Origin

Italy

Discoverer

Unknown

William Smith

Etymology

From Latin conglomeratus, to roll together, i.e. from com together + glomerare to gather into a ball, from glomus (genitive glomeris) a ball

From Old French marle, from Late Latin marglia

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Soft Rock

Family

Group

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Clastic

Earthy

Color

Beige, Black, Brown, Buff, Light to Dark Grey, Orange, Rust, White, Yellow

Beige, Brown, Green, Grey, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Shiny and Rounded

Rough and Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles, Homes

Decorative Aggregates, Floor Tiles

Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Roof Tiles

As Building Stone, Roof Tiles

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Roadstone

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

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Jewellery, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, In aquifers, Tombstones

Creating Artwork, Soil Conditioner

Types

Orthoconglomerate and Paraconglomerate

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

Features

Clasts are smooth to touch, Is one of the oldest rock, Matrix variable

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Formation

Conglomerate forms where sediments consisting mainly of pebble and cobble-size clasts at least two millimeters in diameter starts accumulating.

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.

Composition

Mineral Content

Clay, Sand, Silica, Silt

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

Compound Content

NaCl, CaO

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

2-32-3

1 7

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Grain Size

Coarse Grained

Very fine-grained

Fracture

Uneven

Conchoidal

Streak

White

Porosity

Highly Porous

Luster

Dull

Compressive Strength

70.00 N/mm²30.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.6

Specific Gravity

2.86-2.882.2-2.8

0 8.4

👆🏻

Transparency

Opaque

Density

1.7-2.3 g/cm³2.4-2.8 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.80 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Impact Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

India, Pakistan, Russia

Africa

Namibia, Nigeria, South Africa

Ethiopia, Kenya, Morocco, South Africa

Europe

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom

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

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

USA

South America

Brazil

Colombia, Ecuador, Peru

Deposits in Oceania Continent

Australia

New South Wales, New Zealand

New South Wales, Victoria, Western Australia

All about Conglomerate and Marl Properties

Know all about Conglomerate and Marl properties here. All properties of rocks are important as they define the type of rock and its application. Conglomerate and Marl belong to Sedimentary Rocks.Texture of Conglomerate is Clastic whereas that of Marl is Earthy. Conglomerate appears Shiny and Rounded and Marl appears Rough and Dull. The luster of Conglomerate and Marl is dull. Conglomerate is available in beige, black, brown, buff, light to dark grey, orange, rust, white, yellow colors whereas Marl is available in beige, brown, green, grey, white colors. The commercial uses of Conglomerate are cemetery markers, in aquifers, tombstones and that of Marl are creating artwork, soil conditioner.