What is scaglia?

The Scaglia is a pelagic sediment largely composed of calcareous plankton (calcareous nannofossils and planktonic foraminifera), the best available tool for dating and long-distance correlation. In the 1970s it was recognized that these pelagic limestones carry a record of the reversals of the magnetic field.

What does Afforant mean?

noun. a personally offensive act or word; deliberate act or display of disrespect; intentional slight; insult: an affront to the king. an offense to one’s dignity or self-respect. verb (used with object) to offend by an open manifestation of disrespect or insolence: His speech affronted all of us.

What is the meaning of Fiss?

(transitive, nonstandard) To split apart into multiple entities.

What is the KT layer?

The first segment of the Cenozoic Era, from 65 million years ago until the present, has historically been called the Tertiary Period. The abbreviation for the boundary between the Cretaceous and Tertiary periods is the K-T boundary, where K is the abbreviation for the German form of the word Cretaceous.

Where were the mountains of Gubbio formed?

In 1991, the impact site was discovered at Chicxulub, in the Yucatán Peninsula of Mexico. The Gubbio area has thus emerged as a classical geological locality.

What is a fissure medical definition?

Fissure: A cleft or groove. A fissure can be normal or abnormal. A fissure in the cerebral cortex is a normal feature. It is a deep fold that involves the entire thickness of the brain wall.

What does heter mean in medical terms?

Combining forms meaning the other, different; opposite of homo-. [G. heteros, other]

Why is it called the K-T boundary?

The abbreviation for the boundary between the Cretaceous and Tertiary periods is the K-T boundary, where K is the abbreviation for the German form of the word Cretaceous. This boundary corresponds to one of the greatest mass extinctions in Earth’s history.

Why is it called the KT event?

The event receives its name from the German word Kreide, meaning “chalk” (which references the chalky sediment of the Cretaceous Period), and the word Tertiary, which was traditionally used to describe the period of time spanning the Paleogene and Neogene periods.

How did Gubbio mountains form?

This thin, dark band of sediment marks the Cretaceous–Paleogene boundary, also known as the K–T boundary or K–Pg boundary, between the Cretaceous and Paleogene geological periods about 66 million years ago, and was formed by infalling debris from the gigantic meteor impact probably responsible for the mass extinction …