Earth Science
In Partial Fulfilment of Requirements in EARTH SCIENCE
Laboratory Activity No. 2
PRESENTED BY:
Bruno, Emberlou Nyka
De Guzman, Kristin Angela
De Vega, John Paul
Esguerra, Danica Cristelle
Puno, Rachel Faye
Martino, Lawrence
Sisracon, Joyce Angelica
Venturina,Aldrin Jay
PRESENTED TO:
Professor Roberlyn Cabrera
DETERMINING ROCK TYPE I. Introduction:
A rock is a naturally occurring solid aggregate of one or more minerals or mineraloids. For example, the common rock granite is a combination of the quartz, feldspar and biotite minerals. The Earth's outer solid layer, the lithosphere, is made of rock.
Rocks have been used by mankind throughout history. From the Stone Age rocks have been used for tools. The minerals and metals we find in rocks have been essential to human civilization.[1]
Three major groups of rocks are defined: igneous, sedimentary, and metamorphic. The scientific study of rocks is called petrology, which is an essential component of geology.Geologists define a rock as:
A bound aggregate of minerals, mineraloids, or fragments of other rocks.
The use of the word 'bound' means that a rock must have structural integrity, e.g. an aggregate of sand does not become a rock until the grains are bound together. Typical binding agents are very fine grained minerals (e.g. calcite, clay) or mineraloids (e.g. chert, glass), though in some rock types the crystals are intergrown and no binder is required.
Rocks are classified according to how they formed. In most cases, we don't see a rock during its formation, so we rely on rocks’ observable clues to infer their formations. Two clues that indicate a rock’s formation are its composition and texture. * Composition refers to what a rock is made of. The color of a rock can provide a clue to the composition. Fragments of other rocks, fossils, and identifiable mineral grains are also aspects of composition. * Texture is a description of the rock material. It includes
Laboratory Activity No. 2
PRESENTED BY:
Bruno, Emberlou Nyka
De Guzman, Kristin Angela
De Vega, John Paul
Esguerra, Danica Cristelle
Puno, Rachel Faye
Martino, Lawrence
Sisracon, Joyce Angelica
Venturina,Aldrin Jay
PRESENTED TO:
Professor Roberlyn Cabrera
DETERMINING ROCK TYPE I. Introduction:
A rock is a naturally occurring solid aggregate of one or more minerals or mineraloids. For example, the common rock granite is a combination of the quartz, feldspar and biotite minerals. The Earth's outer solid layer, the lithosphere, is made of rock.
Rocks have been used by mankind throughout history. From the Stone Age rocks have been used for tools. The minerals and metals we find in rocks have been essential to human civilization.[1]
Three major groups of rocks are defined: igneous, sedimentary, and metamorphic. The scientific study of rocks is called petrology, which is an essential component of geology.Geologists define a rock as:
A bound aggregate of minerals, mineraloids, or fragments of other rocks.
The use of the word 'bound' means that a rock must have structural integrity, e.g. an aggregate of sand does not become a rock until the grains are bound together. Typical binding agents are very fine grained minerals (e.g. calcite, clay) or mineraloids (e.g. chert, glass), though in some rock types the crystals are intergrown and no binder is required.
Rocks are classified according to how they formed. In most cases, we don't see a rock during its formation, so we rely on rocks’ observable clues to infer their formations. Two clues that indicate a rock’s formation are its composition and texture. * Composition refers to what a rock is made of. The color of a rock can provide a clue to the composition. Fragments of other rocks, fossils, and identifiable mineral grains are also aspects of composition. * Texture is a description of the rock material. It includes