Impact craters on the Moon and impact spherule beds found on the Earth dated to this period are consistent with these predictions.
22.
Spherules have been found all over the world since 1876, most frequently in core samples of deep ocean sediments and polar ice.
23.
Analysis of silicate spherules in Estonian bogs show that the possible age of the impact craters could be approximately 7, 600 years.
24.
There, they develop into a thick-walled spherule filled with endospores that cause a pyogenic ( pus-causing ) inflammation.
25.
The concentration of spherules in bedrock could have produced the observed blueberry covering from the weathering of as little as one meter of rock.
26.
The existence of pyroclastic eruptions was later confirmed by the discovery of glass spherules similar to those found in pyroclastic eruptions here on Earth.
27.
When " Opportunity " dug her first trench ( Sol 23 ), pictures of the lower layers showed similar round spherules.
28.
This site is a large rock with a small, bowl-shaped depression, in which a large number of spherules had accumulated.
29.
The boundary clay was found to be full of minute spherules of rock, crystallized from droplets of molten rock formed by the impact.
30.
Until now, the oldest known spherules were less than 200 million years old, and their condition had been distorted by time and weathering.
