000			02055nam a22003498i 4500
001			CR9781108584142
003			UkCbUP
005			20200124162058.0
006			m|||||o||d||||||||
007			cr||||||||||||
008			181115s2019||||enk o ||1 0|eng|d
020			_a9781108584142 (ebook)
020			_z9781108731119 (paperback)
040			_aUkCbUP _beng _erda _cUkCbUP
050		4	_aQD603.U7 _bL39 2019
082	0	4	_a546.431 _223
100	1		_aLau, Kimberly V., _eauthor.
245	1	4	_aThe uranium isotope paleoredox proxy / _cKimberly V. Lau, Stephen J. Romaniello, Feifei Zhang.
264		1	_aCambridge : _bCambridge University Press, _c2019.
300			_a1 online resource (27 pages) : _bdigital, PDF file(s).
336			_atext _btxt _2rdacontent
337			_acomputer _bc _2rdamedia
338			_aonline resource _bcr _2rdacarrier
490	0		_aCambridge elements. Elements in geochemical tracers in earth system science, 2515-7027
500			_aTitle from publisher's bibliographic system (viewed on 13 Aug 2019).
520			_aUranium isotopes (238U/235U) have emerged as a proxy to reconstruct the redox conditions of the Earth's oceans and atmosphere based upon the large isotopic fractionation between reduced U(IV) and oxidized U(VI). Variations in 238U/235U, particularly when recorded in carbonate sediments, can track global trends in marine oxygenation and de-oxygenation. It is unique from other proxies because reduction primarily occurs at the sediment-water interface, and this sensitivity makes U isotopes especially relevant for the habitability of benthic animals. This Element covers the background, methods, and case studies of this promising tool for understanding Earth's environmental transitions, as rapid development continues to refine the accuracy of interpretations of 238U/235U records.
650		0	_aUranium _xIsotopes.
700	1		_aRomaniello, Stephen J., _eauthor.
700	1		_aZhang, Feifei, _eauthor.
776	0	8	_iPrint version: _z9781108731119
856	4	0	_uhttps://doi.org/10.1017/9781108584142
999			_c523964 _d523962