You are watching: The term paleozoic describes the era of ancient life forms.
Which ide could be provided to reasonably age date a fault?inclusionscross-cuttingoriginal horizontalitysuperposition
The job of matching rocks of comparable age in various regions is referred to as _____.distributioncorrelationinterpretationcross section
What two special circumstances are crucial in the preservation of organisms as fossils?slow burial and also hard partsa many time and also energyrapid burial and also possession of difficult partsslow burial and soft tissue
The procedure in which atomic nuclei spontaneously break apart is referred to as _____.atomic chargealpha particlesradioactivityatomic number
Which kind of radioactive dating method is offered to age date recent geologic events?thorium-leadrubidium-strontiumcarbon-14uranium-leadpotassium-argon
The geologic time scale was devised prior to numerical dating utilizing radioactivity was invented.TrueFal
The radioactive isotope uranium-238, uranium-235, and thorium-232 eventually degeneration to different, stable, daughter isotope of ________.ironleadargonstrontium
Numerical period dates based upon radioactivity are really important for studying Proterozoic geologic history because fossils space rare or absent.TrueFalse
Tilted strata lie below the unconformity; bedding in younger strata over is parallel to the unconformity.
hich of the following ideal characterizes an angular unconformity?Tilted strata lie below the unconformity with loose, unconsolidated floor above.Tilted strata lie below the unconformity; bedding in younger strata over is parallel come the unconformity.Horizontal lava operation lie below the unconformity and also horizontal, sedimentary strata lie above.The discordant boundary between older strata and an intrusive body of granite.
The hatchet Mesozoic describes life forms intermediate in complexity in between early and much later, more modern-looking life forms.TrueFalse
Consider the names of the eras in the geologic time scale. What is meant by "zoic"?places; geographic referencestime; record of eventsrocks; lithified stratalife; life things
Which 2 Paleozoic, geologic, time-scale periods used in north America are merged into the Carboniferous period in Europe and elsewhere?Triassic; JurassicCambrian; OrdovicianMississippian; PennsylvanianPermian; Pennsylvanian
Which that the adhering to geologic monitorings would not bear straight on functioning out the sequence of geologic occasions in one area?inclusions of sandstone in a granite plutona well-exposed dike that basalt in sandstonethe feldspar and also quartz contents of a granitean unconformity between a granite and also sandstone
What fundamental concept states that in a horizontal succession of conformable sedimentary strata, each greater bed is younger 보다 the bed listed below it?law the superpositiontheory the correlative depositiontheory the superstitionlaw of initial correlation
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