GEOLOGICAL MAPPING

Question 1

It is the process of locating and
identifying rock types and
geological structures in relation to
landforms and topography

It is sometimes the first method of
exploration used on the ground, and
it may take place at a local
comprehensive scale or a regional
scale.

Answer 1

GEOLOGICAL MAPPING

Question 2

creates a geological map of
the exploration region, which will show the
distribution of rock types and structures.

Answer 2

GEOLOGICAL MAPPING

Question 3

GEOLOGICAL MAPPING APPLICATION

Answer 3

1.MINERAL & PETROLEUM
EXPLORATION

2. ENGINEERING & CONSTRUCTION
3. ENVIRONMENTAL STUDIES
4. NATURAL HAZARD ASSESSMENT

Question 4

It is used to identify areas for further
investigation. Soil, rock, and/or sediment
samples are typically collected as part of
the surveys. These samples are sent to a
laboratory for analysis in order to
determine prospective mineralization
zones.

Answer 4

GEOCHEMICAL SURVEY

Question 5

TYPES OF
GEOCHEMICAL
SAMPLING

Answer 5

1. SOIL SAMPLING
2. ROCK CHIP SAMPLING
3. COSTEANING OR TRENCH
   SAMPLING
4. STREAM SEDIMENT
   SAMPLING
5. CHANNEL SAMPLING
6. BULK SAMPLING

Question 6

The process of collecting soil samples from a
specific location to analyze its physical,
chemical, and biological properties.

This method is widely used in agriculture,
environmental studies, and mineral
exploration to assess soil quality, fertility, and
the presence of valuable minerals or
contaminants.

Answer 6

SOIL
SAMPLING

Question 7

used to
retrieve soil and subsoil samples.

Answer 7

Hand tools such as shovels, picks, and hand augers

Question 8

is a geological method of
collecting small rock fragments (chips) from an
outcrop, exposed rock face, or trench to analyze
its mineral composition and geochemical
properties.

Answer 8

ROCK CHIP
SAMPLING

Question 9

used to collect up to a few tons of
rock material from outcrops.

Answer 9

Hand-held tools

Question 10

typically gathered during geological
mapping programs.

Answer 10

Rock chips

Question 11

It is a geological exploration method
that involves digging shallow
trenches across a mineralized zone to
collect rock and soil samples.

Answer 11

COSTEANING OR TRENCH
SAMPLING

Question 12

The trench should be _______ wide to more than a meter
wide and a few centimeters to meters deep where hard
rock is near the surface).

Answer 12

20cm

Question 13

It is a geochemical exploration technique
that involves collecting sediment from
stream beds to analyze for trace amounts of
minerals and metals.

Answer 13

STREAM SEDIMENT
SAMPLING

Question 14

A geochemical and geological exploration
method where a continuous or
systematic series of rock or soil samples
is collected along a specific line or
channel to determine the grade and
distribution of minerals in a deposit.

Answer 14

CHANNEL SAMPLING

Question 15

CHANNEL SAMPLING locations

Answer 15

road cuts, open pit faces,
underground mines, trenches,

Question 16

It is a large-scale sampling method used in mineral
exploration and mining to collect a significant
amount of material from a deposit for detailed
testing.

This method provides a more accurate estimate of
ore grade, mineral content, and metallurgical
properties compared to smaller-scale sampling
techniques.

Answer 16

BULK
SAMPLING

Question 17

It involves extracting a large sample by constructing a
small open-cut mine or excavating a small underground
operation.

BULK
SAMPLING

The level of disturbance caused by a bulk sample is
determined by the nature and location of the mineral
deposit being sampled.

Answer 17

BULK
SAMPLING