Sentences with phrase «exact thickness of that layer»
The exact thickness of that layer is unknown, but as it gradually cools, it should form solid chunks that sink like iron snow into the denser, solid inner core, also of unknown size, says geophysicist Sean Solomon of the Carnegie Institution of Washington's Department of Terrestrial Magnetism, the mission's principal investigator.
https://www.scientificamerican.com/ Not exact matches
GISP2 on it's original chronology (Meese - Sowers) exhibited an inconsistent climate / annual layer thickness relationship; Svensson et al. (2006) note that: «the existence of the proposed 1,470 yr cycle depends on the exact timing and phasing of the onset of D — O events, and... this is exactly where we believe that the GISP2 time scale is inaccurate.»