Type the following coordinates into the search bar in Google...

Type the following coordinates into the search bar in Google Earth: $645845.54$ N $164307.04$ W. Zoom in to an eye elevation of $\sim 12979$ ft for a closer look. Based on the color, what is the composition of this rock?
a. ultramafic
b. mafic
c. intermediate
d. felsic

Key Concepts

Color as an Indicator in Geology

Color in geological contexts often serves as a preliminary indicator of rock type, as it can hint at the mineralogical composition of the rock. While not definitive, color observations in combination with other features such as texture and context can support the classification of rocks and understanding of their formation history.

Rock Composition and Classification

Rock classification organizes rocks based on their mineral content, chemistry, and formation history. The categories—felsic, intermediate, mafic, and ultramafic—reflect differences in silica content and associated minerals, which in turn provide insights into the evolutionary processes of the Earth's crust.

Geographic Coordinates

Geographic coordinates are numerical values that specify a location on Earth using systems such as latitude and longitude. They are fundamental in geospatial analysis and navigation, allowing for precise pinpointing of locations on maps or digital platforms.

Remote Sensing and Digital Mapping

Remote sensing involves acquiring information about the Earth's surface without being in direct contact, often using tools like satellite imagery and digital mapping services such as Google Earth. This approach allows for analysis of geological features and environmental conditions from a distance, making it a powerful tool in earth sciences.

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