![](/template/termwiki/images/likesmall.jpg)
Home > Terms > Serbo Croatian (SH) > Eratosten
Eratosten
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 Eratosthenian system extends from 3. 2 billion to 1. 1 billion years ago.
0
0
Patobulinti
- Kalbos dalis: noun
- Sinonimai:
- Blossary:
- Pramonės šaka / sritis: Astronomy
- Category: Planetary science
- Company: PSRD
- Produktas / gaminys:
- Akronimas / santrumpa:
Kitos kalbos:
Ką norite pasakyti?
Terms in the News
Featured Terms
Talkininkas
Featured blossaries
Bagar
0
Terms
64
Aiškinamieji žodynai
6
Followers
Dark Princess - Stop My Heart
Kategorija: Entertainment 1
10 Terms
![](/template/termwiki/images/likesmall.jpg)
![](https://accounts.termwiki.com/thumb1.php?f=darkprin-1380852691.jpg&width=304&height=180)
Browers Terms By Category
- Capacitors(290)
- Resistors(152)
- Switches(102)
- LCD Panels(47)
- Power sources(7)
- Connectors(7)
Electronic components(619) Terms
- World history(1480)
- Israeli history(1427)
- American history(1149)
- Medieval(467)
- Nazi Germany(442)
- Egyptian history(242)
History(6037) Terms
- Contracts(640)
- Home improvement(270)
- Mortgage(171)
- Residential(37)
- Corporate(35)
- Commercial(31)
Real estate(1184) Terms
- Physical geography(2496)
- Geography(671)
- Cities & towns(554)
- Countries & Territories(515)
- Capitals(283)
- Human geography(103)
Geography(4630) Terms
- Hand tools(59)
- Garden tools(45)
- General tools(10)
- Construction tools(2)
- Paint brush(1)