Home > Όροι > Serbo Croatian (SH) > lmbrij
lmbrij
The geologic history of Earth's Moon has been divided into five broad time periods, or systems. From oldest to youngest, these are pre-Nectarian, Nectarian, Imbrian, Eratosthenian, and Copernican. These systems are defined by the number of impact craters on the ground surface (more craters = older surface) correlated to the absolute ages determined for the lunar rock samples returned to Earth by the U. S. Apollo missions and unpiloted Soviet Luna missions. The Imbrian system extends from 3. 85 billion to 3. 2 billion years ago.
0
0
Βελτίωση
- Μέρος του λόγου: noun
- Συνώνυμο(α):
- Blossary:
- Κλάδος/Τομέας: Αστρονομία
- Category: Planetary science
- Company: PSRD
- Προϊόν:
- Ακρώνυμο-συντόμευση:
Άλλες γλώσσες:
Τι θέλετε να πείτε;
Ορολογία Ειδήσεων
Featured Terms
Κλάδος/Τομέας: Αεροπορία Category: Διαστημόπλοια
svemirski šatl
A reusable spacecraft with wings developed by the U.S. National Aeronautics and Space Administration (NASA) for human spaceflight missions. The first ...
Συμβάλλων
Edited by
Διακεκριμένα γλωσσάρια
Browers Terms By Category
- Ballroom(285)
- Belly dance(108)
- Cheerleading(101)
- Choreography(79)
- Historical dance(53)
- African-American(50)
Dance(760) Terms
- Skin care(179)
- Cosmetic surgery(114)
- Στυλ μαλλιών(61)
- Breast implant(58)
- Cosmetic products(5)
Ομορφιά(417) Terms
- Δημοσιογραφία(537)
- Τύπος(79)
- Δημοσιογραφία έρευνας(44)
Ειδήσεις(660) Terms
- Mapping science(4042)
- Soil science(1654)
- Physical oceanography(1561)
- Geology(1407)
- Seismology(488)
- Remote sensing(446)
Earth science(10026) Terms
- Wine bottles(1)
- Soft drink bottles(1)
- Beer bottles(1)