ライフサイエンスコーパス: oxygen isotope

1 nd in situ measurements of O2 /Ar and triple oxygen isotope.

2 ent ocean as inferred from the deposition of oxygen isotopes.

3 y monitoring the magnetic interaction of the oxygen isotope 17O with the Mn2+ by using a rapid freeze

4 cords show opposite trends in time series of oxygen isotopes (a proxy for precipitation variability)

5 O)(-), and Tc((16)O)(3)((17)O)(-) at natural oxygen isotope abundance levels, and in addition the tem

6 the first study that integrates hafnium and oxygen isotopes, all measured in situ on the same, preci

7 High-precision oxygen isotope analyses for the two major groups of ston

8 For oxygen isotope analysis alone, samples as small as 0.2 m

9 ur as well as compound-specific nitrogen and oxygen isotope analysis of nitrate for discrimination of

10 Nitrogen and oxygen isotope analysis of nitrate has a potential for d

11 This limitation was bypassed using oxygen isotope analysis of nitrate in potato tubers, whi

12 new approach, compound-specific nitrogen and oxygen isotope analysis of plant-derived nitrate, has be

13 In conclusion, oxygen isotope analysis of plant-derived sulphate repres

14 ns to assess annual temperature ranges using oxygen isotope analysis requiring only 2 samples per she

15 We applied stable carbon and oxygen isotope analysis to human and faunal tooth enamel

16 Prior to oxygen isotope analysis, grains/crystals were examined u

17 Here we combine oxygen isotope and Mg/Ca data from foraminifers retrieve

18 e we address this deficiency by using paired oxygen isotope and minor element (magnesium/calcium) rat

19 Foraminiferal oxygen isotope and pollen analyses from a deep-sea seque

20 (4)- to 10(6)-year scale, but a link between oxygen isotope and sea level on the 10(7)-year scale mus

21 seawater from 1982 to 2016, based on paired oxygen isotope and Sr/Ca measurements.

22 ugh time is commonly reconstructed using the oxygen isotope and the clumped isotope compositions of c

23 nging ratio of evaporation to precipitation (oxygen isotopes and gypsum precipitation), reveal a recu

24 g the past 1.75 million years, obtained from oxygen isotopes and Mg/Ca ratios in planktonic foraminif

25 Here we analyse oxygen isotopes and Mg/Ca ratios of foraminiferal shells

26 relations are consistent with control of the oxygen-isotope and incompatible-element geochemistry of

27 ed from sedimentary magnetic susceptibility, oxygen isotopes, and diatom and cladoceran assemblages i

28 ding a quantitative assessment utilizing the oxygen isotope anomaly for quantifying CO2 cycling.

29 The cause of the atmospheric oxygen isotope anomaly may be exchange between CO2 and O

30 ace temperature estimates, interpolated from oxygen isotopes, approaching 40 degrees C.

31 Oxygen isotopes are sensitive tracers of climate change

32 etinal produced by the reaction has the same oxygen isotope as the O2 gas used.

33 8 +/- 0.05 per mil and a heat-released water oxygen isotope average value of Delta(17)O = 0.330 +/- 0

34 Oxygen isotope-based temperature estimates from the bacu

35 Here we present oxygen-isotope-based estimates of the palaeo-altimetry o

36 w near-surface temperatures, the exchange of oxygen isotopes between phosphate and water requires enz

37 ater during cellulose synthesis and that the oxygen isotope biochemical fractionation is c. 27 per th

38 The stratospheric CO(2) oxygen isotope budget is thought to be governed primaril

39 n isotope excursions that parallel those for oxygen isotopes can to a large degree be accounted for b

40 The oxygen isotope composition (delta(18)O) of marine sedime

41 As a useful proxy, the oxygen isotope composition (delta18O) of calcite from pl

42 rites, a unique trachyandesite lava (with an oxygen isotope composition identical to that of common u

43 ear record of glacial discharge based on the oxygen isotope composition of diatoms (delta(18)O(diatom

44 The oxygen isotope composition of dissolved inorganic phosph

45 The oxygen isotope composition of phosphate (delta(18)OPO4),

46 n temperature can also be assessed using the oxygen isotope composition of phosphate.

47 Ba/Ca ratio and oxygen isotope composition of planktonic foraminifera in

48 The oxygen isotope composition of speleothems is a widely us

49 Here we show that the triple oxygen isotope composition of sulphate from ancient evap

50 The oxygen isotope composition of terrestrial sulfate is aff

51 The analysis of the stable hydrogen and oxygen isotope composition of water using cavity ring-do

52 l experimental technique for determining the oxygen isotope composition of water, the CO2-H2O equilib

53 cent fall that has orbital properties and an oxygen isotope composition that suggest a distinct paren

54 Because the stable oxygen isotope composition, delta(18)O, of precipitation

55 The changes in oxygen-isotope composition across the Eocene/Oligocene b

56 density of its limb bones and in the stable-oxygen-isotope composition of its teeth.

57 The mass-independent minor oxygen isotope compositions (Delta'(17)O) of atmospheric

58 the currently known natural range of triple oxygen isotope compositions and indicates that the atmos

59 s problem for an accurate measurement of the oxygen isotope compositions for atmospheric sulfate, sin

60 Atmospheric oxygen isotope compositions may be transferred to carbon

61 enland are used to characterize hydrogen and oxygen isotope compositions of ancient seawater.

62 Oxygen isotope compositions of epidote and quartz from c

63 Here we report oxygen isotope compositions of phosphates in sediments f

64 Heterogeneous oxygen isotope compositions of plagioclase from the Boeh

65 The stable oxygen isotope compositions of soil phosphate (delta(18)

66 determinations of soil temperatures and the oxygen isotope compositions of soil waters, constrained

67 Oxygen isotope compositions of these concretions, measur

68 arth and the Moon have essentially identical oxygen isotope compositions.

69 this primitive object have a large range of oxygen isotope compositions.

70 We show that bivalve oxygen isotope data are recording multidecadal Arctic se

71 New oxygen isotope data from calcite shells of the benthic f

72 n extensive set of new and combined iron and oxygen isotope data from magnetite of Kiruna-type ores f

73 By comparing our simulations with oxygen isotope data from sediment cores, we infer that t

74 Here, seasonal-resolution oxygen isotope data from Soreq Cave speleothems suggest

75 The large difference in carbon and oxygen isotope data from the marine record between marin

76 We compare oxygen isotope data from these 17th century oyster shell

77 alinity proxy from the magnesium/calcium and oxygen isotope data indicates that transport of water va

78 ere, we present the first in situ carbon and oxygen isotope data of texturally distinct calcite in ca

79 s) elevations during the Eocene, reconciling oxygen isotope data with other proxies.

80 ural observations, backed up with carbon and oxygen isotope data, which indicate an intimate associat

81 ysical model-based analysis of lake sediment oxygen isotope data.

82 Here we present a new large high-quality oxygen-isotope dataset from an interval that includes pr

83 otope excursion (CIE) that coincides with an oxygen isotope decrease interpreted as the Paleocene-Eoc

84 Mg/Ca and oxygen isotope (delta (18)OC) measurements in foraminife

85 h the stacked deep-sea benthic foraminiferal oxygen isotope (delta(18)O) curve, which strongly sugges

86 Here, we use speleothem oxygen isotope (delta(18)O) data from Bittoo cave, North

87 all existing records are related to deep-sea oxygen isotope (delta(18)O) data that are influenced by

88 similar in form to the corresponding benthic oxygen isotope (delta(18)O) record and defines an overal

89 re we analyze a new high-resolution deep-sea oxygen isotope (delta(18)O) record from the South Atlant

90 wo overlapping decadal resolution speleothem oxygen isotope (delta(18)O) records from a cave on the A

91 ely dated and seasonally-resolved stalagmite oxygen isotope (delta(18)O) records from Shihua Cave, No

92 itatively connecting them to high-resolution oxygen isotope (delta(18)O) records from the Gulf of Mex

93 Soil carbonate carbon isotope (delta(13)C), oxygen isotope (delta(18)O), and geochemical signatures

94 rbon isotope discrimination (Delta(13)C) and oxygen isotopes (delta(18)O) collected from white pine (

95 (deduced from foraminiferal Mg/Ca and stable oxygen isotopes, delta(18)O) in combination with a recen

96 ical Pacific warm pool is reconstructed from oxygen isotope (delta18O) and magnesium/calcium composit

97 Other corals in the same outcrop grew during oxygen isotope (delta18O) substage 6e, indicating that s

98 critical threshold indicated by the benthic oxygen isotope (delta18O) value of 3.5 per mil during ea

99 e find that 3,910-4,280 Myr old zircons have oxygen isotope (delta18O) values ranging from 5.4+/-0.6%

100 as transitions in the benthic foraminiferal oxygen isotope (delta18Ob) record.

101 pretation of palaeoclimate archives based on oxygen isotopes depends critically on a detailed underst

102 aves, simultaneous measurement of carbon and oxygen isotope discrimination allowed the partitioning o

103 o address this knowledge gap, we used online oxygen isotope discrimination measurements to estimate g

104 ane inlet mass spectrometry to determine the oxygen isotope discrimination of a range of O2-consuming

105 omatism is also consistent with the observed oxygen isotope disequillbrium, sequence of mineral forma

106 ystals is conducted to examine the effect on oxygen isotopes during various treatments.

107 Decay of P also involves a significant oxygen isotope effect (k(16)O(2)/k(18)O(2)) of 1.11 +/-

108 Here we present a unified picture of the oxygen isotope effect in cuprate superconductors based o

109 owever, we are unable to detect this unusual oxygen-isotope effect in new data collected under almost

110 al. claim that there is a large and unusual oxygen-isotope effect on the electronic structure, indic

111 oscopy, density functional calculations, and oxygen isotope effects.

112 d 40% deeper rooting, 28% lighter stem water oxygen isotope enrichment (delta(18)O) signature signify

113 of delta(18)O(carb), irrespective of whether oxygen isotope equilibrium is achieved.

114 calcite traditionally considered to approach oxygen-isotope equilibrium.

115 The very slow rate of oxygen isotope exchange between selenate and water under

116 The rate of oxygen isotope exchange between selenate and water was i

117 and water, we use a (17)O tracer to measure oxygen isotope exchange between structural oxygen in man

118 Increases in salinity increased oxygen isotope exchange during cellulose synthesis, whic

119 Through oxygen isotope exchange experiments, we discover a cobal

120 It is established that no oxygen isotope exchange occurs between sulfate and water

121 Rapid oxygen isotope exchange occurs within the combustion rea

122 Oxygen isotope exchange proceeds as a first-order reacti

123 tion around the dike, (b) magma flow and (c) oxygen isotope exchange rates, suggests that the hydroth

124 itional CO2-H2O equilibration technique, the oxygen isotope exchange reaction is done exclusively in

125 iochemical fractionation did not change, but oxygen isotope exchange was twice as high for plants gro

126 ate are either ineffective or not tested for oxygen isotope exchange.

127 Rates of oxygen-isotope exchange at all structural sites in two i

128 We compare oxygen-isotope exchange rates for all structural oxygens

129 Oxygen-isotope-exchange rates were measured between site

130 with carbonate-associated sulfate sulfur and oxygen isotope excursions toward decreased and increased

131 ions have generally paralleled global stable oxygen isotope excursions.

132 was caused by aqueous fluid, the pattern of oxygen isotope fractionation can be explained only by fl

133 hways resulted in a similar small sulfur and oxygen isotope fractionation of -2.4 to -3.6 per thousan

134 te reduction was accompanied by nitrogen and oxygen isotope fractionation of 23.8 +/- 2.5 per thousan

135 We used oxygen isotope fractionation to measure the distribution

136 Described here is the application of oxygen isotope fractionation together with computational

137 periments with (18)O-labeled water, a strong oxygen isotope fractionation was observed for T. denitri

138 eakly temperature-dependent iron oxide-water oxygen isotope fractionation, suggesting that increasing

139 In the rock record it is thought that oxygen isotopes have followed a mass-dependent relations

140 Records based on oxygen isotopes, however, contain uncertainties in the r

141 ility has proved difficult, however, because oxygen isotopes in CO(2) are influenced by both the carb

142 uring the last interglacial period, based on oxygen isotopes in diatom silica, diatom assemblages and

143 Mg/Ca palaeothermometry with measurements of oxygen isotopes in foraminiferal calcite in order to rec

144 spanning the past 10,000 years derived from oxygen isotopes in fossil mollusk shells from Peru.

145 Our evidence, based on oxygen isotopes in mammal teeth (which reflect temperatu

146 ly correlated with temperature inferred from oxygen isotopes in mammal teeth and were probably driven

147 Oxygen isotopes in marine sulfate (delta18O(SO4)) measur

148 ew information regarding the distribution of oxygen isotopes in natural samples.

149 shows that tree rings preserve the signal of oxygen isotopes in precipitation during the wet season,

150 magery with the first measurements of stable oxygen isotopes in soluble inorganic phosphate (delta(18

151 Here we use stable oxygen isotopes in speleothems from northern India to re

152 e of the isotope fractionation of sulfur and oxygen isotopes in sulfate from these incubations was lo

153 isotope fractionation factors for sulfur and oxygen isotopes in sulfate were about 40 per thousand an

154 ssed to completion, with the distribution of oxygen isotopes in the Gln152 carboxylate finally matchi

155 The abundances of oxygen isotopes in the most refractory mineral phases (c

156 rochronological studies on stable carbon and oxygen isotopes in the shells of this species, less is k

157 Here we report a study of oxygen isotopes in two basaltic meteorite suites, the HE

158 general circulation model (GCM) that tracks oxygen isotopes in vapor.

159 ntified systematic variations in hafnium and oxygen isotopes in zircons of different ages that reveal

160 Oxygen isotopes, in particular, are affected by the carb

161 ile coordination sites are compared with the oxygen isotope incorporation rates from substrate water

162 itude of the seasonal curve constructed from oxygen isotopes is significantly dampened during the YD,

163 uncertainties with a pulselike change in the oxygen isotope marine record in the Atlantic and Pacific

164 p using 30-y tree ring records of carbon and oxygen isotope measurements and basal area increment fro

165 We use stable oxygen isotope measurements from trees without annual ri

166 We infer from our oxygen isotope measurements in planktonic foraminifera t

167 Oxygen isotope measurements indicate that the growth of

168 However, oxygen isotope measurements indicated a temperature-depe

169 Here we report stable oxygen isotope measurements of aragonite in fish otolith

170 Here we use sulphur and triple oxygen isotope measurements of atmospheric sulphate extr

171 Oxygen isotope measurements of carbonate from martian me

172 Here we present oxygen isotope measurements of mineral inclusions within

173 port from the stratosphere, where the triple oxygen isotopes of CO2 are distinct from those originati

174 xample, widespread anomalies observed in the oxygen isotopes of meteorites have been interpreted as r

175 Natural abundance nitrogen and oxygen isotopes of nitrate (delta(15)NNO3 and delta(18)O

176 The anomaly in triple oxygen isotopes or (17)O excess (denoted by Delta(17)O)

177 timated to be only 15-23 degrees C, based on oxygen isotope palaeothermometry of surface-dwelling pla

178 is core has prevented the use of traditional oxygen-isotope palaeothermometry.

179 leothermometer with a newly developed triple oxygen isotope paleo-CO2 barometer.

180 Here we combine an established oxygen isotope paleothermometer with a newly developed t

181 Here we show that in a chromium versus oxygen-isotope plot Ost 65 falls outside all fields enco

182 Oxygen isotope profiles in otoliths excavated from Ostra

183 during the Eocene, based on a comparison of oxygen isotope proxy data with isotope-enabled climate m

184 esults suggest the potential for a tree-ring oxygen isotope proxy record of tropical cyclone occurren

185 The oxygen isotope ratio (delta(18)O) of cellulose is though

186 t for CO photodissociation having caused the oxygen isotope ratio associated with the early solar neb

187 Using the technique of on-line oxygen isotope ratio mass spectrometry, we found that mi

188 We combine Mg/Ca palaeothermometry and oxygen isotope ratio measurements on planktonic foramini

189 apid, and clean way for measuring the triple oxygen isotope ratio of carbon dioxide with high precisi

190 Abrupt shifts of up to 18 per mil in the oxygen isotope ratio of diatom silica have been found in

191 ied by geochemical biomarkers, including the oxygen isotope ratio of phosphate (delta(18)O(p)) presen

192 at this model can overestimate the cellulose oxygen isotope ratio of plants under salinity or water s

193 ity developed using a new coupled carbon and oxygen isotope ratio technique in an exceptionally well-

194 al-resolution model output of the amount and oxygen-isotope ratio of rainfall from an isotope-enabled

195 Measurements of the oxygen isotope ratios (18O/16O and 17O/16O) in atmospher

196 ows normal oscillatory zonation and constant oxygen isotope ratios (delta(18)O = 5.8 to 6.0 per thous

197 Here we used phosphate oxygen isotope ratios (delta(18)O(P)) in concert with se

198 Stable oxygen isotope ratios (delta(18)O) of Precambrian cherts

199 Here we compare oxygen isotope ratios (delta(18)O) of tooth-enamel carbo

200 on of the Allende meteorite caused shifts in oxygen isotope ratios along a single mass fractionation

201 In this research, phosphate oxygen isotope ratios and Bayesian modeling on fingerpri

202 Furthermore, covarying carbonate carbon and oxygen isotope ratios are constrained to have formed at

203 Hydrogen and oxygen isotope ratios are of use to determine the origin

204 global sea-level estimates based on deep-sea oxygen isotope ratios at millennial-scale resolution or

205 17O and 18O relative to this line, and their oxygen isotope ratios can be explained by mass fractiona

206 O and (18)O relative to this line, and their oxygen isotope ratios can be explained by mass fractiona

207 We interpret our record of oxygen isotope ratios from the shells of the long-lived

208 variation in precipitation over the Amazon: oxygen isotope ratios in annual rings in tropical cedar

209 Asia, seasonally and interannually depleted oxygen isotope ratios in precipitation have been linked

210 We then measured the oxygen isotope ratios of leaf water, stem water and stem

211 We show that the observed oxygen isotope ratios of nitrate are compatible with nit

212 , phosphorus to nitrogen, and carbon ratios, oxygen isotope ratios of phosphate in vegetation, and ph

213 n, and (iv) a systematic shift in sulfur and oxygen isotope ratios of sulfate, indicative of microbia

214 It was shown that oxygen isotope ratios of sulphate from organic vegetable

215 tion depth coincide with changes in seawater oxygen isotope ratios of up to 1.5 per mil, suggesting a

216 e responsible for the differentiation of the oxygen isotope ratios of wine water.

217 sting variations in feldspar composition and oxygen isotope ratios that can only result from hydrothe

218 SMOW)] by at most 25 +/- 5 per thousand, but oxygen isotope ratios were comparable to modern oceans.

219 This shift is reflected in oxygen isotope ratios with low values (- 8 to - 10 per m

220 oon are shown here to have indistinguishable oxygen isotope ratios, with a difference in Delta'(17)O

221 perature and increasing global ice volume on oxygen isotope ratios.

222 mite growth and a gradual increase in stable oxygen isotope ratios.

223 e limit of measurement for both hydrogen and oxygen isotope ratios.

224 Oxygen-isotope ratios of a stalagmite from Socotra Islan

225 ious meteorites have Mg/Si and Al/Si ratios, oxygen-isotope ratios, osmium-isotope ratios and D/H, Ar

226 ainly to the cumulative rainout processes of oxygen isotopes (Rayleigh distillation) in air parcels d

227 Convective activity, as inferred from oxygen isotopes, reached a minimum during Heinrich event

228 Here we present a new annually-resolved oxygen isotope record from a 1500-year long stalagmite r

229 precisely-dated, high-resolution speleothem oxygen isotope record from Dongge Cave, southwest China

230 Here we present a 175,000 year oxygen isotope record from precisely-dated speleothems t

231 Here, we present an oxygen isotope record of a stalagmite with well-develope

232 Here we present a high-resolution oxygen isotope record of a U/Th-dated stalagmite from su

233 which partially reconciles the foraminiferal oxygen isotope record of tropical sea surface temperatur

234 ume proxy(3) (as derived from the deep-ocean oxygen isotope record) and sea-level cycles are in phase

235 global ice volume (inferred from the marine oxygen isotope record).

236 pitation bears a striking resemblance to the oxygen-isotope record from Greenland ice cores, with inc

237 relate with major positive shifts in benthic oxygen isotope records and generally coincide with inter

238 Oxygen isotope records from Chinese caves characterize c

239 Here we analyse oxygen isotope records from Red Sea sediment cores to re

240 Here we present three absolutely dated oxygen isotope records from stalagmites in northern Born

241 New multidecadal-resolution foraminiferal oxygen isotope records from the Gulf of Alaska (GOA) rev

242 ring the mid- and late Holocene using paired oxygen isotope records from two regions in North America

243 ative timing of changes in the neodymium and oxygen isotope records indicates that changes in Cenozoi

244 230Th-dated oxygen isotope records of stalagmites from Sanbao Cave,

245 olution sea surface temperature and seawater oxygen isotope records of well-dated sedimentary archive

246 regional climate variance, inferred from our oxygen isotope records, exhibits a precessional rhythm,

247 and ice-sheet model simulations and benthic oxygen isotope records, indicate that Northern Hemispher

248 event 2 is suggested by available speleothem oxygen isotope records.

249 15-13, much longer than expected from marine oxygen isotope records.

250 re of the penultimate deglaciation in marine oxygen-isotope records.

251 ) = -2.5 +/- 4.3 per mil (per thousand)] and oxygen isotopes [referenced to the Vienna standard mean

252 t with previously described major sulfur and oxygen isotope relationships.

253 against delta (18)O represents the primitive oxygen isotope reservoir of the early solar nebula.

254 7O against delta18O represents the primitive oxygen isotope reservoir of the early solar nebula.

255 se measurements support the existence of two oxygen isotope reservoirs (the atmosphere and the silica

256 Here we report in situ U-Pb and oxygen isotope results for such zircons that place const

257 Three oxygen isotope sensitive Raman features are identified i

258 , with the appearance in the latter of a new oxygen isotope-sensitive band.

259 We also confirm the presence of an oxygen isotope-sensitive line at 355 cm(-1), detectable

260 that we simulate is equivalent to a seawater oxygen isotope signal of 0.52-0.66 per thousand, or a se

261 ter affected the seawater sulfate sulfur and oxygen isotope signature that has been recorded in carbo

262 The oxygen isotope signature varies with shifts in the sourc

263 ern ice-sheets were restricted during marine oxygen isotope stage (MIS) 14.

264 e data from the marine record between marine oxygen isotope stage 12 (MIS 12) and MIS 11, spanning th

265 gan to build during the early part of Marine Oxygen Isotope Stage 3.

266 t (GIS) during the glacial advance of marine oxygen isotope stage 4 (MIS4).

267 ronmental changes around the transition from oxygen isotope stage 5 to stage 4) could have led not on

268 d between saltier conditions during the cold oxygen isotope stages 2, 4 and 6, and lower salinities d

269 Paleobotanical, paleopedologic, and oxygen isotope studies indicate high temperatures during

270 1) upon oxygen isotope substitution (16O --> 18O leads to T(c) d

271 xchanged into H216O, they can be assigned to oxygen isotope substitution at the C-2 postion.

272 The oxygen isotope technique allowed estimation of mesophyll

273 An online oxygen isotope technique was developed to allow quantifi

274 Oxygen-isotope thermometry played a critical role in the

275 Evidence from power spectra of deep-sea oxygen isotope time series suggests that the climate sys

276 ated, high-resolution (~50 y) time series of oxygen isotopes to show that the precession of the earth

277 polar regions on the distribution of marine oxygen isotopes, using an intermediate complexity model.

278 amics of Bi2212 samples containing different oxygen isotopes, using angle-resolved photoemission spec

279 oraminiferal size-specific stable carbon and oxygen isotope values (delta(13)C and delta(18)O, respec

280 ostatistical model to predict human skeletal oxygen isotope values (delta(18)Op) in Britain is presen

281 ct high-resolution temperature records using oxygen isotope values and Mg/Ca ratios in both surface-

282 The oxygen isotope values do correlate with the abundances o

283 n isotope data combined with measurements of oxygen isotope values from the same specimens allow for

284 nges in the calculated aragonite equilibrium oxygen isotope values implies shallow calcification dept

285 We present a 220-year record of oxygen isotope values of alpha-cellulose in longleaf pin

286 It also has bulk oxygen isotope values of Delta(17)O = 0.58 +/- 0.05 per

287 tive analyses of sizes, relative ratios, and oxygen isotope values of particulate P pools in the cree

288 tiliser application rate on the nitrogen and oxygen isotope values of plant-derived nitrate has been

289 temperatures reconstructed from mean otolith oxygen isotope values show little change through this in

290 This is indicated by low oxygen isotope values with strong seasonality in gastrop

291 Here we report the broadest range of oxygen isotope values yet measured in marine sediments (

292 f 1.5 parts per thousand in deep-sea benthic oxygen-isotope values (Oi-1) within a few hundred thousa

293 Here, however, we report oxygen-isotope values of two massive sulphate mineral de

294 We have found similar oxygen isotope variations recorded in mixed-layer-and th

295 Sea level mirrors oxygen isotope variations, reflecting ice-volume change

296 osun), then substantial fractionation of the oxygen isotopes was possible on a timescale of approxima

297 omponent, but the latter can be diagnosed by oxygen isotopes, which are strongly fractionated by rock

298 chondrite inclusions some minerals exchanged oxygen isotopes with an external reservoir following cry

299 and cathodoluminescence imaging and measure oxygen isotopes with an ion probe.

300 a reagent to the water sample and exchanges oxygen isotopes with the water.