I think you are referring to the 'iridium spike' - the Yucatan impactor brought to earth a quantity of iridium that was deposited and is detectable at the K-T boundary (the Cretaceous - Tertiary boundary) wherever this is found round the planet.
Researchers have found evidence of the KT boundary in Colorado, including a layer of sediment containing high levels of iridium, shocked quartz, and microtektites. These materials are characteristic of the impact event that caused the mass extinction of the dinosaurs.
75 percent of plants, animals and microbes.
Trenches are found in a divergent boundary.
i personally observed it in kawah village in Kalachitta range and in hari pur at peer ki bandi area.
As of July 2014, the market cap for KT Corporation (KT) is $7,593,131,376.64.
The KT Boundary (also called the Cretaceous-Paleogene, or K-Pg boundary) is a boundary marking the Cretaceous-Tertiary extinction (KT extinction) event. It is usually seen as a thin band, caused by an asteroid impact that wiped out much of life at the time.
The symbol for KT Corporation in the NYSE is: KT.
The element that has been linked to the extinction of the dinosaurs is iridium. High levels of iridium have been found in sediment layers around the world from the time of the dinosaur extinction, suggesting that it may have come from an asteroid impact.
A= A0e^-kt A0= A/ e^kt = Ae^kt A0= A+ D* D*= A0- A D*= Ae^kt - A D*= A(e^kt - 1)
Divergent Boundary
It is the asteroid that hit the Earth 65 million years ago and contributed to the extinction of the dinosaurs. It impact crater is located in Chicxulub which is in the Yucatan peninsula, it is buried deep underground. KT refers to the geological transition between the Cretaceous and the Tertiary periods. (Cretaceous in German starts with a K)
kt is nothing . when you get minimum marks . it is kt.