Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
SlideshowReport

Iridium-Rich Layer of Clay

Description
Iridium-Rich Layer of Clay
This photograph of strata in the Apennine Mountains of Italy
shows a dark-colored layer of iridium-rich clay sandwiched
between white limestone (bottom) from the late Mesozoic
era and grayish limestone (top) from the early Cenozoic era.
The coin is the size of a U.S. quarter.
Related Images
Add Comment
Explore
Post your homework questions and get free online help from our incredible volunteers
  1413 People Browsing
 104 Signed Up Today
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 249

Previous poll results: Who's your favorite biologist?