Forensics Chapter 12 Soil Examination

study of soil and rocks

• rockology

• geology

• gemology

the removal of minerals

and clay as water drips through

• leaching

• bleaching

• dendrology

particles are larger than clay and

smaller than sand

• silt

• humus

• granite particles

a naturally occurring,

crystalline solid formed over time

• mineral

• rock

hard substance made of minerals

• malacite

• rock

• granite

Soil-a mixture of minerals, water, gases, and the remains

of dead organisms that covers the Earth's surface

• False

• True

granules of fine rock particles

• humus

• sand

• bedrock

formation of soil

through the action of wind and water on rock

• weathering

• deposition

a cross section of

horizontal layers, or horizons,

in the soil that have distinct

compositions and properties

• soil layers

• soil horizon

Real and fictional investigators have been using soil samples to identify crimi-

nals since the late 1800s. Between 1887 and 1893, Sir Arthur Conan Doyle

wrote about the use of geology in the investigation of crime in his novels. His

character, _________, used soil and mud samples to help link an indi-

vidual to a specific location where a crime had been committed.

• Sharon Lyle

• Sherlock Holmes

• Sherlock Lyle