Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q7085581> ?p ?o }
Showing triples 1 to 73 of
73
with 100 triples per page.
- Q7085581 subject Q7468490.
- Q7085581 subject Q8621270.
- Q7085581 abstract "The oldest dated rocks on Earth, as an aggregate of minerals that have not been subsequently broken down by erosion or melted, are more than 4 billion years old, formed during the Hadean Eon of Earth's geological history. Such rocks are exposed on the Earth's surface in very few places. (Some meteorites, such as the ALH84001 Mars meteorite found in the Allan Hills of Antarctica, are older but they were not formed on Earth).Some of the oldest surface rock can be found in the Canadian Shield, Australia, Africa and in a few other old regions around the world. The ages of these felsic rocks are generally between 2.5 and 3.8 billion years. The approximate ages have a margin of error of millions of years. In 1999, the oldest known rock on Earth was dated to 4.031 ± 0.003 billion years, and is part of the Acasta Gneiss of the Slave craton in northwestern Canada. Researchers at McGill University found a rock with a very old model age for extraction from the mantle (3.8 to 4.28 billion years ago) in the Nuvvuagittuq greenstone belt on the coast of Hudson Bay, in northern Quebec; the true age of these samples is still under debate, and they may actually be closer to 3.8 billion years old. Older than these rocks are crystals of the mineral zircon, which can survive the disaggregation of their parent rock and be found and dated in younger rock formations.".
- Q7085581 thumbnail 4,030,000,000_Years_Acasta_Gneiss.jpg?width=300.
- Q7085581 wikiPageExternalLink images.php3?img_id=17201.
- Q7085581 wikiPageExternalLink zircon_home.html.
- Q7085581 wikiPageExternalLink zircon-jan01.htm.
- Q7085581 wikiPageExternalLink 7202.pdf.
- Q7085581 wikiPageExternalLink hadean4.html.
- Q7085581 wikiPageExternalLink 1828.
- Q7085581 wikiPageWikiLink Q101949.
- Q7085581 wikiPageWikiLink Q104168.
- Q7085581 wikiPageWikiLink Q1043963.
- Q7085581 wikiPageWikiLink Q104460.
- Q7085581 wikiPageWikiLink Q1219139.
- Q7085581 wikiPageWikiLink Q13085.
- Q7085581 wikiPageWikiLink Q1502096.
- Q7085581 wikiPageWikiLink Q156312.
- Q7085581 wikiPageWikiLink Q1626318.
- Q7085581 wikiPageWikiLink Q1634522.
- Q7085581 wikiPageWikiLink Q163967.
- Q7085581 wikiPageWikiLink Q166409.
- Q7085581 wikiPageWikiLink Q176.
- Q7085581 wikiPageWikiLink Q178248.
- Q7085581 wikiPageWikiLink Q178928.
- Q7085581 wikiPageWikiLink Q188168.
- Q7085581 wikiPageWikiLink Q190444.
- Q7085581 wikiPageWikiLink Q191110.
- Q7085581 wikiPageWikiLink Q191704.
- Q7085581 wikiPageWikiLink Q194068.
- Q7085581 wikiPageWikiLink Q2.
- Q7085581 wikiPageWikiLink Q2007.
- Q7085581 wikiPageWikiLink Q201492.
- Q7085581 wikiPageWikiLink Q214753.
- Q7085581 wikiPageWikiLink Q222814.
- Q7085581 wikiPageWikiLink Q2233523.
- Q7085581 wikiPageWikiLink Q2389585.
- Q7085581 wikiPageWikiLink Q3040.
- Q7085581 wikiPageWikiLink Q3206.
- Q7085581 wikiPageWikiLink Q338146.
- Q7085581 wikiPageWikiLink Q35666.
- Q7085581 wikiPageWikiLink Q370398.
- Q7085581 wikiPageWikiLink Q380971.
- Q7085581 wikiPageWikiLink Q405.
- Q7085581 wikiPageWikiLink Q42045.
- Q7085581 wikiPageWikiLink Q43521.
- Q7085581 wikiPageWikiLink Q4571428.
- Q7085581 wikiPageWikiLink Q47580.
- Q7085581 wikiPageWikiLink Q5269412.
- Q7085581 wikiPageWikiLink Q577.
- Q7085581 wikiPageWikiLink Q580133.
- Q7085581 wikiPageWikiLink Q5930261.
- Q7085581 wikiPageWikiLink Q60186.
- Q7085581 wikiPageWikiLink Q662806.
- Q7085581 wikiPageWikiLink Q6966352.
- Q7085581 wikiPageWikiLink Q7408853.
- Q7085581 wikiPageWikiLink Q7468490.
- Q7085581 wikiPageWikiLink Q757649.
- Q7085581 wikiPageWikiLink Q76034.
- Q7085581 wikiPageWikiLink Q7946.
- Q7085581 wikiPageWikiLink Q80026.
- Q7085581 wikiPageWikiLink Q8053599.
- Q7085581 wikiPageWikiLink Q8063.
- Q7085581 wikiPageWikiLink Q847257.
- Q7085581 wikiPageWikiLink Q8621270.
- Q7085581 wikiPageWikiLink Q862978.
- Q7085581 wikiPageWikiLink Q904607.
- Q7085581 wikiPageWikiLink Q906601.
- Q7085581 wikiPageWikiLink Q913970.
- Q7085581 wikiPageWikiLink Q935310.
- Q7085581 comment "The oldest dated rocks on Earth, as an aggregate of minerals that have not been subsequently broken down by erosion or melted, are more than 4 billion years old, formed during the Hadean Eon of Earth's geological history. Such rocks are exposed on the Earth's surface in very few places.".
- Q7085581 label "Oldest dated rocks".
- Q7085581 depiction 4,030,000,000_Years_Acasta_Gneiss.jpg.