ESS 101 lab quiz Ques ons and answers | Updated
RATED A+ | NEW 2026
Which lines get closer together as they approach the poles? Lines of la tude of lines of
longitude (circle one)?
La tude and longitude comprises a grid system of lines encircling the globe and is used to
determine the loca ons of points on the earth. Lines of la tude, also called parallels, run east -
west. La tude lines always run parallel to each other, and hence, they are always an equal
distance apart.
What could explain the asymmetry of magne c stripes on the ocean floor?
The magne c stripes represent fluctua ng polarity changes of the Earth's magne c field
preserved in the basal c ocean crust. The reversals have been dated using K-Ar da ng
producing a paleomagne c me scale
What is the difference between fracture and cleavage for a mineral? How can you dis nguish
between them when looking at a sample?
Fracture is the characteris c way a mineral breaks. The difference between cleavage and
fracture is that cleavage is the break of a crystal face where a new crystal face is formed where
the mineral broke, whereas fracture is the "chipping" of a mineral.
What does mafic mean? What are two mafic minerals?
Mafic is an adjec ve describing a silicate mineral or igneous rock that is rich in magnesium and
iron, and is thus a portmanteau of magnesium and ferric. Most mafic minerals are dark in color,
and common rock-forming mafic minerals include olivine, pyroxene, amphibole, and bio te.
What does felsic mean? What are two felsic minerals?
In geology, felsic refers to igneous rocks that are rela vely rich in elements that form feldspar
and quartz. ... Felsic refers to silicate minerals, magma, and rocks which are enriched in the
lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.
What does the Bowen's reac on series represent?
Bowen determined that specific minerals form at specific temperatures as a magma cools. At
the higher temperatures associated with mafic and intermediate magmas, the general
progression can be separated into two branches.
RATED A+ | NEW 2026
Which lines get closer together as they approach the poles? Lines of la tude of lines of
longitude (circle one)?
La tude and longitude comprises a grid system of lines encircling the globe and is used to
determine the loca ons of points on the earth. Lines of la tude, also called parallels, run east -
west. La tude lines always run parallel to each other, and hence, they are always an equal
distance apart.
What could explain the asymmetry of magne c stripes on the ocean floor?
The magne c stripes represent fluctua ng polarity changes of the Earth's magne c field
preserved in the basal c ocean crust. The reversals have been dated using K-Ar da ng
producing a paleomagne c me scale
What is the difference between fracture and cleavage for a mineral? How can you dis nguish
between them when looking at a sample?
Fracture is the characteris c way a mineral breaks. The difference between cleavage and
fracture is that cleavage is the break of a crystal face where a new crystal face is formed where
the mineral broke, whereas fracture is the "chipping" of a mineral.
What does mafic mean? What are two mafic minerals?
Mafic is an adjec ve describing a silicate mineral or igneous rock that is rich in magnesium and
iron, and is thus a portmanteau of magnesium and ferric. Most mafic minerals are dark in color,
and common rock-forming mafic minerals include olivine, pyroxene, amphibole, and bio te.
What does felsic mean? What are two felsic minerals?
In geology, felsic refers to igneous rocks that are rela vely rich in elements that form feldspar
and quartz. ... Felsic refers to silicate minerals, magma, and rocks which are enriched in the
lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.
What does the Bowen's reac on series represent?
Bowen determined that specific minerals form at specific temperatures as a magma cools. At
the higher temperatures associated with mafic and intermediate magmas, the general
progression can be separated into two branches.
