Mesozoic and Cenozoic Eras?

Question

True or False?

The layer of clay enriched in iridium between the sediments of the Mesozoic and Cenozoic eras is indicative of volcanic activity.

If false please correct the statement. Thank you.

Answer 1

Much debate whether meteorites fell during this period and erradicated the dinosaurs. Iridium is very rare on earth but is found in meteorites and other space debris.
So I would have to say the answer to your question is false, The layer of clay enriched with iridium between the sediments of the Mesozoic and Cenozoic eras is indicative of meteorite impact.

Answer 2

Probably false.
Current thinking is that the K-T boundary was marked by a catastrophic meteor impact.

Try this:
The layer of clay enriched in iridium between the sediments of the Mesozoic and Cenozoic eras is indicative of a large meteor impact event. It is currently thought that the crater of this impact event may be found off the coast of Yucatan, Mexico.

Answer 3

False. Iridium is indicative of asteroid impact. Not vulcanism. The statement should read : the layer of clay enriched in iridium between the sediments of the Mesozoic and Cenozoic eras is indicative of meteor or asteroid impact.

Answer 4

False.

The iridium anomaly that marks the end of the Mesozic is believed to relate to a large impact. The related (now buried) crater is thought to be in Mexico.

Answer 5

adj. pertaining to the era following pre-cambrian and preceding the Mesozoic.-n. the Paleozoic era with its life forms and rock systems. paleo+zoe=life adj. pertaining to the era between the paleozoic and the Cenozoic.-n. this era-including Triassic, Jurassic and Cretaceous periods. adj. of or pertaining to the fourth and lastest of the eras of geological times, following the Mesozoic , and extending and including the present.-The Cenozoic period. Gk. kainos, new+zoe=life

Answer 6

false