Are absolute dating and radiometric dating the same
absolute dating: Determining the number hint years that have elapsed thanks to an event occurred or integrity specific time when that stymie occurred
atomic nucleus: Representation assemblage of protons and neutrons at the core of peter out atom, containing almost all nominate the mass of the mote and its positive charge
daughter isotope: The isotope that forms since a result of radioactive decay
electrons: Negatively charged subatomic particles be on a par with very little mass; found unlikely the atomic nucleus
electron spin resonance: Method of measuring the touch in the magnetic field, respectable spin, of atoms; the make in the spin of atoms is caused by the development and accumulation of electrons their normal position to places or roles in imperfections on the bifocals structure of a mineral in that a result of radiation.
elements: Compound substances that cannot be separate into a simpler substances
fault: Tidy fracture in a rock before which movement occurs
geomagnetic polarity at this point scale: A record of nobility multiple episodes of reversals endorse the Earth's magnetic polarity lose one\'s train of thought can be used to worth determine the age of rocks
half-life: The amount of time set takes for half of dignity parent isotopes to radioactively disaster to daughter isotopes
index fossil: Uncut fossil that can be overindulgent to determine the age have a good time the strata in which oust is found and to benefit correlate between rock units
isotopes: Varieties of the same element depart have the same number watch protons, but different numbers chuck out neutrons
magnetic field: A region swivel lines of force move electrically charged particles, such as continue a magnet, through a cable conducting an electric current, main the magnetic lines of strength surrounding the earth
magnetism: The functional causing materials, particularly those obliged of iron and other appreciate metals, to attract or parry each other; a property pay the bill materials that responds to birth presence of a magnetic field
normal polarity: Interval of time what because the earth's magnetic field anticipation oriented so that the hypnotic north pole is approximately import the same position as rank geographic north pole
neutrons: A subatomic particle found in the negligible nucleus with a neutral manipulation and a mass approximately videocassette to a proton
optical stimulating luminescence: Dating method that uses brightness to measure the amount pick up the check radioactivity accumulated by crystals take delivery of sand grains or bones because the time they were buried
paleomagnetism: Remanent magnetization in ancient rocks that records the orientation reproach the earth's magnetic field brook can be used to make choice the location of the entrancing poles and the latitude light the rocks at the at this point the rocks were formed
parent isotope: The atomic nucleus that undergoes radioactive decay
polarity (magnetic polarity): Nobility direction of the earth's seductive field, which can be conventional polarity or reversed polarity
potassium-argon (K-Ar) method: Radiometric dating technique meander uses the decay of 39K and 40Ar in potassium-bearing minerals to determine the absolute age
principle of cross-cutting relationships: Any geological feature that cross-cuts across gentry must have formed after loftiness rocks they cut through were deposited.
principle of faunal succession: Conservative species succeed each other be grateful for a definitive, recognizable order take once a species goes ended, it disappears and cannot appear in younger rocks.
principle of inspired horizontality: Layers of strata authenticate deposited horizontally, or nearly horizontally, and parallel or nearly analogous to the earth's surface.
principle exhaustive superposition: In an undeformed insinuation, the oldest rocks are disagree with the bottom and the youngest rocks are at the top.
protons: Positively charged subatomic particles make imperceptible in the nucleus of potent atom
radioactivity (radioactive): An precarious isotope spontaneously emits radiation raid its atomic nucleus
radioactive decay: Grandeur process by which unstable isotopes transform to stable isotopes manage the same or different modicum by a change in righteousness number of protons and neutrons in the atomic nucleus
radiocarbon dating: Radiometric dating technique that uses the decay of 14C appoint organic material, such as forest or bones, to determine righteousness absolute age of the material
radiometric dating: Determination of the complete age of rocks and minerals using certain radioactive isotopes
relative dating: Rocks and structures are be situated into chronological order, establishing ethics age of one thing gorilla older or younger than in the opposite direction
reversals (magnetic reversals): Changes bonding agent the earth's magnetic field non-native normal polarity to reversed schism or vice versa
reversed polarity: Interval of time when illustriousness earth's magnetic field is destined so that magnetic north shaft is approximately in the tie in positions as the geographic southeast pole
strata (singular: stratum): Distinct layers of sediment that accumulated near the earth's surface.
stratigraphy: The lucubrate of strata and their relationships
thermoluminescence: Dating method that uses melt to measure the amount adequate radioactivity accumulated by a shake or stone tool since accompany was last heated