Noachian

American  

[noh-ey-kee-uhn] / noʊˈeɪ ki ən /

Also Noachic

adjective

1. of or relating to the patriarch Noah or his time.

---

Noachian British  

/ -ˈeɪkɪk, nəʊˈækɪk, nəʊˈeɪkɪən /

adjective

1. Old Testament of or relating to the patriarch Noah

---

Etymology

Origin of Noachian

1670–80; Noach (variant of Noah ) + -ian

Example Sentences

The team estimates that Mars would have lost between 40 and 95 percent of its water via this process in the planet’s Noachian period, which stretches from 4.1 billion to 3.7 billion years ago.

From Scientific American

Some of the detected clays are in bedrock that has been exposed by erosion, others have been washed downstream from such sources by the Noachian rivers.

From Scientific American

Magmatic precipitation as a possible origin of Noachian clays on Mars.

From Nature

During this era on Mars—which geologists have dubbed the Noachian Period—volcanic eruptions poured ash and gases into the atmosphere, trapping solar heat and warming the red planet.

From National Geographic

But those features formed in the Noachian period and so are about 3.8 billion years old, meaning they existed before scientists think Mars lost most of its insulating, water-friendly atmosphere.

From National Geographic