The first australopithecine 2,500 kilometres west of the rift valley (Chad)
Article Abstract:
The australopithecine mandible from the Chad basin confirms the presence of a early hominid at about 2,500 km west of the Rift Valley, Chad. These fossils consists of abundant quartz, potash feldspar and hydrated sodium silicates, and is of 3.0-3.4 Myr approximately. Its fauna contains aquatic taxa. The discovery from the site KT 12 differs in features from the already existing ones, such as mandibular morphology, premolar roots and enamel thickness. Hominids were found in the woodland belt from the Atlantic Ocean to the Cape of Good Hope. A specific origin for hominids cannot be confirmed.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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Chondrule formation in particle-rich nebular regions at least hundreds of kilometres across
Article Abstract:
A model in which molten chondrules come to equilibrium with the gas that was evaporated from other chondrules, and which explains the observations in a natural way is reported. Chondrules are millimetre-sized spherules that dominate the texture of primitive meteorites and their sheer abundance suggests that their formation mechanism was both energetic and ubiquitous in the early inner Solar System.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Interception of comet Hyakutake's ion tail at a distance of 500 million kilometres
Article Abstract:
It has been possible to detect cometary pick-up ions, probably linked with the tail of comet Hyakutake, at a distance of 3.4 AU from the nucleus. Hyakutake is now the fourth comet to have been analyzed with ion mass spectrometers.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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