Quantitative limits to palaeogravity

Publisher Website
Google Scholar
Abstract
Limits to the former magnitude of the gravity force at the Earth’s surface, g, with respect to the present magnitude g o , have been determined by five methods, i . The permanent existence of a terrestrial atmosphere over the last 37 x 10 9 years (0.33 g o < g) 2. Dimensions of vertebrates: Jurassic Apatosaurus (g < 1.2 g o ) and Upper Cretaceous Pteranodon (g < 2 g o ) 3. Miocene overconsolidation of the London Clay (0.5 g o < g < g o ) 4. Phanerozoic upper mantle mineralogy (0.4 g o < g < 2.2 g o ) 5. Crustal mineralogy during the Phanerozoic (0.5 g 0 < g < 1.4 go) and Precambrian (0.5 g o < g < 1.9 g o ) These limits can be used to put constraints on hypotheses involving Earth expansion and changes in the universal constant of gravitation.

This publication has 28 references indexed in Scilit: