History of the Earth Part 5

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Can you name the history of the Earth term?

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an organic gemstone
what a crinoid attaches itself to the sea floor with
Orogeny associated with the close of the Iapetus ocean
Name of the earliest recognizable North American continent
place where oldest Ediacaran fossils can be found
Where would the asteroid that caused the K/T extinction have hit?
country with largest meteorite crater
what a crinoid is topped with
rocks fused into glass by shock waves
glassy particles formed during impact when molten rock is ejected
term for exposed part of a craton
name of crater like structure that is attributed to having been caused by the asteroid that caused the K/T extinction
cones with a distinctly conical shape
orogeny associated with the building of the supercontinent Rodinia
hintanswer
what element was found in 30x its normal concentration at the K-T boundary?
thick assemblage of sediments, often lens-shaped in profile, eroded and deposited landward of a mountain chain
Name of Formation with the earliest glacial deposits
oldest part of modern continents
what percent of the global nickel supply does Canada provide? (enter with numerals, no percent sign)
term for trace fossils of trilobites
term for anthropods with calcereous skin
Term for shallow inland seas
what did charles walcott discover?
Name of second largest crater (it is located in Canada)
ancient micro-continent added to another piece of crust
What we term the Late Permian extinction - the greatest diversity loss of all extinctions
large accumulations of mafic igneous rock accumulated in a short time interval (ie. areas of extensive basalt flows)
term for tiny skeletal pieces

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Created Nov 30, 2010ReportNominate
Tags:earth, term