Day #3 S1 Flashcards
Topic: Geochem, Geophysics, Geothermal Energy
A spectrum is produced when?
Radiation from a source is separated into its different wavelength.
Spectrums from light containing all wavelengths is called a _______ spectrum.
Continuous
A spectrum containing radiation of only specific wavelength is called a _______ spectrum.
Line
Bohr based his model on _______ postulates
Three
Tor F: The lowest energy state (n=1) is called the ground state of the atom.
TRUE
Tor F: When the electron is in a higher energy level, the atom is said to be in an excited state.
TRUE
n = 4 to n = 3, Energy is _
energy is released
n = 2 to n = 5 Energy is _
energy is absorbed
Who created the Plum pudding model
J. J. Thomson
Tor F: A triple junction is kinematically unstable if the orientation of each plate boundary remains constant relative to other boundaries in the triple junction during a finite time-interval.
FALSE
FFF Triple Junction is _
Always unstable
It is the only RRR above sea level
Afar TJ
Angle of geographic N & magnetic N
Angle of Deviation
What dynasty was simple compasses were invented?
Han Dynasty
Angle between the earth’s surface and the magnetic field lines
Magnetic inclination
The Galapagos Triple Junction is where the _, _, _ meet
Pacific Plate, Cocos Plate, and Nazca Plate
The Azores Triple Junction is where the _, _, and _ meet
North American Plate, the Eurasian Plate and the African Plate
Enumerate the types of Meteorites
Iron, Stoney(Stoney, Chondrite, Achondrite), Stony-Iron
What is Activation Energy?
Energy req. for transformation to take place
Differentiate Solidus and Liquidus
Solidus- Boundary in the phase diagram where minerals start to melt or becomes completely solid. Liquidus - where mineral starts to crystallize or becomes completely liquid
Differentiate Eutectic and Peritectic Point
Eutectic - Invariat point, maximum number of allowable pahses intersect and in equilibrium. Peritectic - Invariant point where two phases that could never co-exist together react with each other
Differentiate Major, Minor, and Trace Elements
Major - >1% chemical composition(can determine overall characteristics of the material), Minor - 1-0.1% chemical composition Tracec- <1% chemical composition (can indicate environment and conditions of its origin)
Differentiate Compatible and Incompatible Elements
Compatible - Ions are easily accomodated in crystal lattice and mineral structure. Incompatible Elements - Ions that do not fit into the mineral structure during crustallization leading to accumulation in the residual magma.
Give Examples of LREE
Sc, La, Ce, Pr, Nd, Pm, Sm, Eu
