This science ClipArt gallery offers 497 illustrations of geology, including structure and composition of land, minerals, and fossilized organisms.

General view, in part schematic, of the volcanic massif of the Mezenc.

Volcanic Massif of the Mezenc

General view, in part schematic, of the volcanic massif of the Mezenc.

Section of volcanic plug (basalt) in chalk. Coast of Antrim, Ireland.

Volcanic Plug

Section of volcanic plug (basalt) in chalk. Coast of Antrim, Ireland.

An opening in the surface of the earth surrounded by an accumulation of ejected matter, forming a hill or mountain.

Volcano

An opening in the surface of the earth surrounded by an accumulation of ejected matter, forming a hill…

Cone sections of various types of volcanoes. 1. Vesuvius 2. Lake Laach 3. Rocca Monfina 4. Lago Bracciano 5. Krakatoa 6. Peak of Teneriffe 7. Mauna Loa

Cone Sections of Volcanoes

Cone sections of various types of volcanoes. 1. Vesuvius 2. Lake Laach 3. Rocca Monfina 4. Lago Bracciano…

"The internal structure of many cones has been laid bare by prolonged erosion after the volcano has become extinct." — Hinman, 1888

Section of a volcano

"The internal structure of many cones has been laid bare by prolonged erosion after the volcano has…

Diagram illustrating several stages in the development of the Wasatch Mountains from the original fault block through rugged mountain topography to subdued mature topography, and final obliteration and formation of a peneplane.

Wasatch Mountains

Diagram illustrating several stages in the development of the Wasatch Mountains from the original fault…

"Geologic units penetrated by water wells in Seminole County." -Barraclough, 1962

Water Wells

"Geologic units penetrated by water wells in Seminole County." -Barraclough, 1962

"Intricate subterranean course of percolating water." -Geikie, 1893

Subterranean Water

"Intricate subterranean course of percolating water." -Geikie, 1893

Trenton Falls, a geologist's playground, has been inspiring generations of scientists. Referred to as Kuyahoora by the natives, the leaping waters of the Deyoghtararon, was held in great spiritual regard by native peoples for centuries prior to the arrival of settlers. Trenton Falls is located in West Canada Creek Valley in north central New York State. This tributary of the Mohawk River drains much of the southwestern Adirondack Mountains. Limestone and shale dominate the rock formation at Trenton Falls.

Trenton High Falls

Trenton Falls, a geologist's playground, has been inspiring generations of scientists. Referred to as…

The image shows different layers of clay, gravel, and sand and how underground waters travel through. HT is the sand surface S is the lowest point where rain water will settle. W is a well that goes as deep as g. O is gravel where water can fill. A and B are artesian wells.

Underground Waters

The image shows different layers of clay, gravel, and sand and how underground waters travel through.…

Diagram illustrating the relation of the Dansville to the Wayland Valleys. The floor of the Wayland Valley at Wayland has an elevation of 1372 feet. Its continuation on the extreme left hand of the diagram is 1300 feet. The elevation of the Dansville Valley at Dansville is 700 feet. Both valleys are partially filled by drift. The streams which dissect the Wayland Valley have cut narrow gorges in the rock bottom.

Wayland Valleys

Diagram illustrating the relation of the Dansville to the Wayland Valleys. The floor of the Wayland…

How the well often becomes impure and carries disease. A well near a barnyard or cesspool is likely to be unsafe for use. The liquids enter the soil, and sometimes follow along the crevice in rocks a hundred feet or more. Sewage, which is household waste, garbage, or dead animals cast into a stream, or placed near a well or spring, may cause many deaths among those using the water.

Well Water

How the well often becomes impure and carries disease. A well near a barnyard or cesspool is likely…

Cross-section of a part of the West Alps, south of Lake Geneva, mainly in France.

West Alps, South of Lake Geneva

Cross-section of a part of the West Alps, south of Lake Geneva, mainly in France.

Volcanic sills - Whin Sill, North England.

Whin Sill, North England

Volcanic sills - Whin Sill, North England.

"Microscopic sections of fossil wood, fron Scarborough)." -Taylor, 1904

Wood Fossil

"Microscopic sections of fossil wood, fron Scarborough)." -Taylor, 1904

Map of a desert area with yardangs, and cross sections of the same on a much larger scale.

Yardangs

Map of a desert area with yardangs, and cross sections of the same on a much larger scale.

Natural crystal. 3, zircon.

Zircon

Natural crystal. 3, zircon.