By What do you mean by petrography?
Petrography is the study of rocks in thin section by means of a petrographic microscope (i.e., an instrument that employs polarized light that vibrates in a single plane). Petrography is primarily concerned with the systematic classification and precise description of rocks.
What does Petrologist mean?
(pə-trŏl′ə-jē) The branch of geology that deals with the origin, composition, structure, and alteration of rocks.
What do you mean by Petrogenesis?
Petrogenesis, also known as petrogeny, is a branch of petrology dealing with the origin and formation of rocks. While the word petrogenesis is most commonly used to refer to the processes that form igneous rocks, it can also include metamorphic and sedimentary processes, including diagenesis and metamorphic reactions.
How do you write a dictionary definition?
If you’re just starting out writing definitions, begin with words that have specific meanings, especially nouns. Compare the number of meanings in a dictionary for specific words, such as “keepsake” or “prattle” to the number of meanings for widely-used words such as “down” or “set”, and you’ll see why.
Why is petrography useful?
Archaeologists use petrography to identify mineral components in pottery. This information ties the artifacts to geological areas where the raw materials for the pottery were obtained. In addition to clay, potters often used rock fragments, usually called “temper” or “aplastics”, to modify the clay’s properties.
What is difference between petrology and petrography?
is that petrology is (geology) the study of the origin, composition and structure of rock while petrography is (petrology) the branch of petrology that deals with the scientific description and classification of rocks.
Who is the father of petrology?
Sir James Hall
The Scottish geologist Sir James Hall (1761–1832) is considered to be the father of experimental petrology. His experiments on the melting and crystallization of basalt were decisive in resolving the debate between the Plutonist and Neptunist schools of geologists in the late eighteenth and early nineteenth centuries.
What is the difference between petrography and petrogenesis?
The main difference between petrography and petrogenesis is that petrography involves the description and classification of rocks, especially by microscopic examination, while petrogenesis focuses on the origin and formation of rocks, especially igneous rocks.
What is dictionary example?
An example of dictionary is a book with English to Italian translations. An example of dictionary is a book with legal codes and regulations. The definition of a dictionary is an online or printed resource that lists words in alphabetical order, listing the meaning, pronunciation and part of speech for the word.