ライフサイエンスコーパス: geochemical

1 al roles on primordial Earth, given its poor geochemical accessibility.

2 Geochemical analyses and thermodynamic modelling reveal

3 Solid- and solute-phase geochemical analyses combined with modeled bioturbation

4 ic, metatranscriptomic, genomic binning, and geochemical analyses from Axial Seamount, an active subm

5 barcoding analyses with sedimentological and geochemical analyses from three lake-catchment systems t

6 This study presents sedimentological and geochemical analyses of core data retrieved from the upp

7 Geochemical analyses of sedimentary barites (barium sulf

8 We present data from microscopic and geochemical analyses of the Upper Devonian Chattanooga S

9 layers around the concretions, combined with geochemical analyses, reveal that Sr was incorporated in

10 rrihydrite and investigated the system using geochemical analyses, X-ray absorption spectroscopy (XAS

11 geted metagenome analysis were combined with geochemical analyses.

12 Here, we conduct nanoscale geochemical analysis of a framboidal magnetite grain wit

13 s of stomatal and vascular conductivity with geochemical analysis of fossilized tissues and process-b

14 obtained from high-resolution trace-element geochemical analysis of Homo sapiens (both modern and fo

15 tailed shard morphology characterization and geochemical analysis suggest that two tephra layers were

16 and compared these with outputs from various geochemical and adsorption models that were run as a fun

17 In contrast, here we show clear geochemical and biological evidence for methane producti

18 This comprehensive, integrated study of geochemical and biological variability of headwater stre

19 haeological ornaments using microstructural, geochemical and biomolecular analyses, including 'palaeo

20 ghting the ability of the sensor to decouple geochemical and biotic effects on phosphate dynamics in

21 In this study, we examined the geographic, geochemical and ecological factors that influence microb

22 In many geochemical and environmental studies structure-propertr

23 However, new field, geochemical and geochronological data from the Culebra C

24 These combined geochemical and geophysical data indicate that the struc

25 Little is known about this storage because geochemical and geophysical observations are limited to

26 Geochemical and hydrological data from abandoned mine wa

27 Finally, by integrating geochemical and hydrological data we present a new conce

28 in objective of this work was to investigate geochemical and hydrological processes governing the sub

29 However, geochemical and hydrological shifts during MAR can relea

30 les in conjunction with previously published geochemical and isotope data indicate a biogenic origin

31 arc, which displays one of the most extreme geochemical and isotopic ranges, although the origin of

32 We establish geochemical and isotopic tracers that can identify Bakke

33 ism plays an important role in producing the geochemical and isotopic variations in arc lavas.

34 In the present study, geochemical and microbial data sets collected from 35 we

35 Here we present petrographic, geochemical and microbial DNA evidence preserved in prec

36 Using a suite of geochemical and microbiological analyses, we measured th

37 We synthesize geochemical and mineralogical data from lake-bed mudston

38 as well as independent of location-specific geochemical and mineralogical factors.

39 kwash deposits are identified by terrestrial geochemical and mineralogical signatures, associated wit

40 ucture of Sulfolobus islandicus by comparing geochemical and molecular analysis from seven hot spring

41 Our results, based on geochemical and molecular genetic assays on sediments fr

42 proxies obtained from the most comprehensive geochemical and palaeobiological dataset yet collected t

43 We applied independent geochemical and palynological proxies to a sedimentary a

44 silica surface, critical to a wide range of geochemical and technological applications.

45 rom a deep hot source, inferred to represent geochemical and temperature variations at Solfatara.

46 This study of the geochemical and temporal differences between the NW and

47 We interpret the geochemical and temporal differences between the SE and

48 is applicable to the study of hydrological, geochemical, and biological interactions for a range of

49 e report insights from a joint hydrological, geochemical, and metagenomics characterization of a geot

50 Here, we report the molecular, geochemical, and mineralogical composition of organo-min

51 Combined microscopic, microtomographic, geochemical, and sedimentologic analyses provide evidenc

52 ion of early Hadean (>4.5 billion years ago) geochemical anomalies in lavas sampling this reservoir.

53 interpretation for the origin of seismic and geochemical anomalies in the deep lower mantle, as well

54 isotope ratios can offer a large variety of geochemical applications in particular for the determina

55 Genetic markers and geochemical assays of microbial nitrogen cycling process

56 e different sources of uranium (uranium ore, geochemical background, and uranium from anthropogenic a

57 es plays a crucial role in the catalytic and geochemical behavior of metal oxides.

58 However, the geochemical behavior of this toxic redox-sensitive oxyan

59 likely of critical importance to explain the geochemical behavior of U.

60 The geochemical behaviors of phosphate-containing species at

61 ferent natural and anthropogenic sources and geochemical behaviors, were used to compare streamwater

62 ess of water over elements that show similar geochemical behaviour during mantle melting (for example

63 e current study were to: identify biological/geochemical/biophysical determinants of and characterize

64 e of subseafloor microbial activity on fluid geochemical budgets.

65 Geochemical calculations explicitly incorporating this m

66 ntly limited in our ability to deal with the geochemical changes unfolding in our coastal ocean.

67 an adequate explanation for the longer-term geochemical changes.

68 rcury methyltransferase, hgcA, combined with geochemical characterisation of soils, were used to dete

69 bitat hosts a vast microbial population, and geochemical characteristics suggest that nitrogen compou

70 should therefore be combined with a detailed geochemical characterization of water samples.

71 Here we present magnetic and geochemical climate records from the northeastern Tibeta

72 The results are of importance for the geochemical community studying terrestrial NOM with stru

73 Although geography controls regional geochemical composition and population differentiation,

74 The geochemical composition of the hydrothermal fluids sugge

75 t to be persistent in groundwater under most geochemical conditions but more recently have been found

76 Changing hydrologic and geochemical conditions cause U to be released into groun

77 al ground truth proxies for studying life in geochemical conditions close to those assumed to be pres

78 e and reciprocally, that gene abundances and geochemical conditions largely determine gene expression

79 The geochemical conditions leading to ternary uranyl complex

80 isation of canopy traits across climatic and geochemical conditions remain uncertain.

81 consistent proto-metabolism under different geochemical conditions, which are still surrounded by hi

82 ith respect to contamination and fluctuating geochemical conditions.

83 ze different electron acceptors depending on geochemical conditions.

84 rately exergonic or endergonic even at ideal geochemical conditions.

85 from the AIS than the GrIS, highlighting the geochemical consequences of prolonged water residence ti

86 (Hg(II)(i), Hg(0)((aq)), MeHg) and relevant geochemical constituents in pore waters of eight Alaskan

87 underlying mantle, although geophysical and geochemical constraints on the exact thickness and defin

88 local seismic source studies, geodetic, and geochemical constraints, are typically most sensitive to

89 Using geochemical constraints, we examine an extensive compila

90 ope (delta(98/95)Mo) analyses to investigate geochemical controls on Mo mobility within a tailings ma

91 However, geochemical controls on V mobility within coke deposits

92 modelling approach revealed additional soil geochemical covariates affected DTPA-extractable soil Zn

93 low predicting the role of green rust on the geochemical cycle of ions, including nutrients, in soils

94 /y), humans are the predominant force in the geochemical cycle of V at Earth's surface.

95 uld be important for understanding dynamics, geochemical cycle, and dynamo generation in water-rich p

96 curately assigned microbial contributions to geochemical cycles and automated the partitioning of gut

97 ially have important consequences for global geochemical cycles of iodine, including iodine levels of

98 the study of deep biospheres, their role in geochemical cycles, and their potential to inform on the

99 ng permanent changes to terrestrial ecology, geochemical cycles, atmospheric CO(2) levels, and climat

100 , and explore the implications for long-term geochemical cycles.

101 from subducting slabs are critical in global geochemical cycles.

102 ically influences its environmental fate and geochemical cycling and is also of interest in water tre

103 slabs and play key roles in controlling the geochemical cycling and physical properties of subductio

104 tributed over the Earth's surface, and their geochemical cycling is globally important.

105 on and sulfur, and has a major impact in the geochemical cycling of these elements in low-pH environm

106 important variable but near-surface-aquifer geochemical data also were significant.

107 Our geochemical data collectively provide the oldest evidenc

108 Here we report new geophysical and fluid geochemical data for high-temperature active hydrotherma

109 We provide geochemical data for the highest-(3)He/(4)He lavas from

110 Geochemical data from 40 water wells were used to examin

111 We present compiled geochemical data of young (mostly Pliocene-present) inte

112 Here we report petrological and geochemical data on magmas erupted 4.7-0.3 Myr ago in ce

113 have been elucidated by microearthquakes and geochemical data over a broad spectrum of spreading rate

114 The geochemical data provided important information for fiel

115 The geochemical data show a near-perfect correlation between

116 wetlands of intermediate trophic status, and geochemical data suggest mercury methylation pathways va

117 Our geochemical data suggest that cable bacteria promote con

118 Indeed, the geochemical data suggests this mode of convection could

119 We use multiparameter geophysical and geochemical data to show that the 110-square-kilometer a

120 ((aq)) formation was not identified based on geochemical data, but we surmise that dissolved organic

121 r quantitative comparison of geophysical and geochemical data, linked through sets of common intensiv

122 resent levels by 420-400 Ma, consistent with geochemical data.

123 ntal parameters from a statewide groundwater geochemical database and publicly available maps of soil

124 e we apply a statistical analysis to a large geochemical dataset of mafic rocks spanning the last 3.5

125 Co-located geophysical and geochemical datasets in the borehole show a remarkably c

126 same geochemically depleted component (where geochemical depletion refers to ancient melt extraction)

127 s without knowledge of kinetic parameters or geochemical depth profiles.

128 Global-scale geochemical differences across the upper mantle are know

129 this chain, Loa and Kea, and the systematic geochemical differences between them have remained unexp

130 Loa-track volcanism, yielding the systematic geochemical differences observed between Loa- and Kea-ty

131 eir melt inclusions display a high degree of geochemical disequilibrium with their carrier melts at K

132 nd sediments and play a critical role in the geochemical distribution of trace elements and heavy met

133 solution microscopy to assess biological and geochemical drivers of weathering in natural settings.

134 Geochemical elements were enriched in cryoconite relativ

135 e characterization of water-based corrosion, geochemical, environmental and catalytic processes rely

136 t the speciation of U(IV) in low-temperature geochemical environments, inhibiting the development of

137 animals are often found in black shales with geochemical evidence for deposition in marine environmen

138 cling throughout Earth's history, yet direct geochemical evidence for mantle reprocessing remains elu

139 .31 Gyr ago, concurrent with the most recent geochemical evidence for the Great Oxidation Event.

140 he Ediacaran-Cambrian interval coincide with geochemical evidence for the modernisation of Earth's bi

141 Whilst abundant geochemical evidence indicates repeated intervals of oce

142 hquakes, which are spatially correlated with geochemical evidence of a fluid pathway from the mantle,

143 anomaly in the upper mantle and there is no geochemical evidence of an asthenosphere mantle contribu

144 driver of hominin evolution, but most of the geochemical evidence relies on carbon isotopes (delta(13

145 or the first time, to our knowledge, we show geochemical evidence that this storage is key to the gen

146 The widely accepted paradigm of Earth's geochemical evolution states that the successive extract

147 cycling has been widely used to reconstruct geochemical evolutions of paleoenvironments.

148 column but neglect to consider physical and geochemical factors and contributions from the sediment.

149 robial community responses to alterations in geochemical factors beyond the bulk phase.

150 Our insights on geochemical factors influencing aqueous mercury speciati

151 nd complexity associated with biological and geochemical factors influencing Dhc activity.

152 he engineered E. coli is affected by various geochemical factors relevant to geothermal fluids, inclu

153 Geochemical factors that control the structural order of

154 as the metabolic potential to adapt to local geochemical factors which dictate the community assembly

155 grouping pattern is associated with several geochemical factors, and structures of not only the enti

156 ibution of Fe(III) photoreduction to the bio-geochemical Fe redox cycle in aquatic freshwater sedimen

157 The geochemical findings for these teeth reinforce the uniqu

158 due to their widespread dispersal and unique geochemical fingerprints.

159 fic predictions, model results indicate that geochemical fluxes are robust indicators of microbial co

160 Exceptionally well-preserved organic geochemical fossils--biomarkers--preserved in a soil hor

161 sing Italian alabaster and provides a robust geochemical framework for provenancing, including recogn

162 l vents, microbial communities thrive across geochemical gradients above, at, and below the seafloor.

163 arth would therefore be strongly affected by geochemical gradients of E(h), pH, and temperature, and

164 Furthermore, geochemical gradients of pH, redox, and temperature in i

165 takes place in three steps progressing along geochemical gradients produced through microbial activit

166 cale species sorting in response to regional geochemical gradients.

167 uorescence (LSF) through the recovery of the geochemical halo from the original calamus matching the

168 mical images revealed a pronounced impact of geochemical heterogeneities concerning the reactivity of

169 und implications for the nature and scale of geochemical heterogeneities in Earth's deep mantle and s

170 isms within a single injection well owing to geochemical heterogeneity across the aquifer system.

171 The resulting sediment geochemical heterogeneity provides a critical control on

172 iments from offshore Svalbard that represent geochemical horizons where anaerobic methanotrophy is ex

173 Variables representing geologic sources, geochemical, hydrologic, and physical features were amon

174 requires new numerical tools that integrate geochemical, hydrological, and biological processes.

175 te a new era in biosynthetic/degradation and geochemical isotopic compound studies.

176 High-resolution geochemical, isotopic, and (14)C analyses of a sedimenta

177 Batch mixing experiments and geochemical kinetics modeling of the associated reaction

178 olcano north of Toba, Sinabung, shows strong geochemical kinship with Toba, and zircons from recent e

179 re, we combined a variety of data, including geochemical measurements, rate measurements and molecula

180 that As release can be attributed to various geochemical mechanisms within a single injection well ow

181 Transylvanian Basin, Romania) in relation to geochemical milieu and pore water chemistry, while infer

182 A geochemical model was calibrated from batch reactor data

183 molecular biological, genomic, isotopic, and geochemical modeling approaches have led to new paradigm

184 alpy value necessary for improved predictive geochemical modeling of U(VI) adsorption in the environm

185 In-situ mu-CT experiments combined with geochemical modeling provide unique insight into the int

186 diffraction and scattering experiments with geochemical modeling to contribute to filling this gap.

187 Here, we combine machine learning and geochemical modeling to reveal the biogeochemical contro

188 on near-edge structure (XANES) spectroscopy, geochemical modeling, wet chemistry soil extraction, and

189 for a wide range of elements by mechanistic geochemical modeling.

190 of Hg speciation in groundwater by means of geochemical modeling.

191 However, geochemical modelling and the occurrence of high (3)He/(

192 Geochemical modelling of the speciation of oxalates and

193 Geochemical models reproduce observed reaction progress

194 t for the building of robust and mechanistic geochemical models that will allow predicting the role o

195 Finally, a late phase of geochemical modification by saline fluids is recognized.

196 ased on genetic (simple sequence repeat) and geochemical (multielement and (87)Sr/(86)Sr ratio) analy

197 distribution of surface nutrients provides a geochemical niche favorable for N2fixation, the primary

198 e of biofilms in creating spatially distinct geochemical niches that enable the co-existence of multi

199 Previous geochemical observations and modeling at the site sugges

200 Such combined geophysical and geochemical observations will help constrain models pred

201 a low Nb/Ta ratio) that is incompatible with geochemical observations.

202 Mars has been interpreted as indicating that geochemical or biotic activities could persist on Mars t

203 thesis, based on assessment of phylogenomic, geochemical, paleontological, and stratigraphic evidence

204 ation gene abundance and expression and site geochemical parameters (e.g., VC concentrations).

205 gle algal species, metabolites, and specific geochemical parameters can be used to unravel mixed meta

206 pling to account for temporal variability of geochemical parameters, including known shale OG geochem

207 s was investigated in seven soils of varying geochemical parameters.

208 sequencing, linking these community data to geochemical parameters.

209 (Hg) is challenging to predict as different geochemical pools of Hg may respond differently to enhan

210 This geochemical process is more effective than metal solutio

211 itan Archaea suggests they are mediating key geochemical processes and are specialized for survival i

212 ity, and thereby occurrences of water-driven geochemical processes in terrestrial environments.

213 es, organic syntheses, biological chemistry, geochemical processes including metal transport, coordin

214 xtension, alter the important ecological and geochemical processes it affects.

215 cterize the extent, severity, and underlying geochemical processes of groundwater arsenic (As) pollut

216 en essential to uncovering the microbial and geochemical processes that drive Earth's sulfur cycle.

217 organisms that correlate spatially with the geochemical processes they carry out.

218 lly in evaluating microbial contributions to geochemical processes through time.

219 enic, including geomorphological and organic geochemical processes.

220 ane under anoxic conditions was suggested by geochemical profiles at marine hydrocarbon seeps(1-3), a

221 so the rare subcommunity are correlated with geochemical profiles in the aquifer ecosystem.

222 Geochemical profiles, archaeal communities, and bacteria

223 city within the context of varying climates, geochemical properties and stone conditions.

224 position of the particles suggest that their geochemical properties may influence the extent of Zn bi

225 This study suggests that the geochemical properties of carbonate rocks may provide su

226 lcano MV420 (420 m water depth) by analyzing geochemical properties, microbial lipids, and nucleic ac

227 ducted with two soils comprising contrasting geochemical properties.

228 Here we measured geochemical proxies (delta(11)B and B/Ca) in Porites ast

229 ing prospect to decipher the vital effect on geochemical proxies applied to paleoceanographic reconst

230 It is debated whether the geochemical proxies are unreliable, affected by diagenes

231 Here we combine a large collection of geochemical proxies for sea surface temperature with an

232 ear from the sulfur isotope record and other geochemical proxies that the production of oxygen or oxi

233 Using a series of geochemical proxies, a model to describe variable H(2) c

234 precision U-Pb geochronology, and additional geochemical proxies, for a range of environmental proxie

235 This study utilizes the geochemical proxy and N isotope record of the Ediacaran-

236 bitats in the Iberian Basin, integrated with geochemical proxy data (delta(13)C and delta(18)O), to i

237 tructions as they can considerably alter the geochemical proxy signatures in calcareous skeletal stru

238 and locations of susceptible groundwater, a geochemical reaction model that included pure Pb mineral

239 w, heat transport, solute transport, and the geochemical reaction network to fully reproduce the Eh o

240 d successfully captures the evolution of the geochemical reactions and morphology of the fracture.

241 rstanding fracture alteration resulting from geochemical reactions is critical in predicting fluid mi

242 proach to analyze and upscale the ESA during geochemical reactions, which are involved in a wide rang

243 properties and CO(2)-enriched brine-dolomite geochemical reactions.

244 their translation into enzymes that catalyze geochemical reactions.

245 Geochemical reactive transport modelling, constrained by

246 s about both the possible occurrence and the geochemical reactivity of such As-bearing pyrites in low

247 Here we analyse the geochemical record and timing of the Pacific Ocean Large

248 Much of the geochemical record of recent anthropogenic activity has

249 oint, independently documented in the global geochemical record of rhyolites, at which rhyolitic melt

250 Our equatorial coccolith-derived geochemical record thus highlights an important period o

251 In addition, these geochemical records combined with previously published m

252 In this study, the geochemical records from two adjacent alpine bogs in the

253 However, current geochemical records lack the temporal resolution to addr

254 Holistic integration of fossil and geochemical records leads us to challenge the notion tha

255 Here we present new geochemical records of terrigenous dust accumulating on

256 roduce homogeneous, flux-free glass beads of geochemical reference materials (GRMs), uranium ores, an

257 tween particle microhabitats and surrounding geochemical regimes is a strong selective force shaping

258 markers and proxies that may establish novel geochemical relationships between archaeal ether lipids

259 has been subject of a longstanding debate in geochemical research and pollutant forensics because its

260 unity are interconnected through exchange of geochemical resources.

261 Geochemical results suggest that magmatism before 107 Ma

262 Inorganic geochemical results, as shown by increasing values of Si

263 building blocks in the same local primordial geochemical scenario.

264 iron (oxyhydr)oxides, a model system for the geochemical sequestration of radiotoxic actinides.

265 Centimeters of soil depth and corresponding geochemical shifts consistently affected microbial commu

266 oceans, which allow large and nonreversible geochemical shifts to arise from relatively small change

267 rothermal system controlling geophysical and geochemical signals at the caldera.

268 during the Archaean eon would have produced geochemical signals identical to those used to date the

269 How this biological similarity affects geochemical signals, and their interpretations, has yet

270 A unique geochemical signature overlaps with the southeastern flo

271 with thicker eggshell and a partly different geochemical signature than those from the egg-bearing la

272 lting ecosystem oscillations induce a unique geochemical signature within the ODZ-short-lived spikes

273 ts 10 and 19 km upstream of a reservoir left geochemical signatures in sediments and porewaters corre

274 ure of the lithosphere is illuminated by the geochemical signatures of metasomatised mantle rocks and

275 elta(13)C), oxygen isotope (delta(18)O), and geochemical signatures of weathering intensity reveal a

276 Both procedures are demonstrated for geochemical soil data sets from Europe, Australia, and t

277 ent that enters the biosphere primarily from geochemical sources, but also through anthropogenic acti

278 dicting the mobility and toxicity of Hg, but geochemical speciation codes have not yet been tested fo

279 the demise of ferruginous oceans, but recent geochemical studies show that ferruginous conditions per

280 ability of U before and after stimulation, a geochemical study of U speciation was carried out on thr

281 ution of the primary lunar crust is based on geochemical systematics from the lunar ferroan anorthosi

282 ty species during the long term evolution of geochemical systems, even in oxygen-limited environments

283 tu experiments for studying fractionation in geochemical systems.

284 The gel-based method enriches our geochemical toolbox by enabling detailed characterizatio

285 Thus, it is essential to find a geochemical tracer to establish where upwellings are con

286 Oxygen Minimum Zone expansion as revealed by geochemical tracers and the onset of upwelling reflected

287 Here, we use diagnostic geochemical tracers combined with groundwater residence

288 ity of rare-earth elements (REEs) as natural geochemical tracers for the analysis of groundwater reme

289 Analysis of geochemical tracers for understanding in situ remediatio

290 reasing stream water concentrations of known geochemical tracers of OG extraction, and the compositio

291 hemical parameters, including known shale OG geochemical tracers, and microbial and benthic macroinve

292 en the intensity of OG development, shale OG geochemical tracers, or benthic macroinvertebrate or mic

293 al dissolution can contribute to the overall geochemical transformation kinetics of nanoparticle in s

294 mmonium transition zone (NATZ), a widespread geochemical transition zone where most of the upward amm

295 A geochemical/transport model was used to simultaneously m

296 largest monitored seismic, deformation, and geochemical unrest at the caldera.

297 PHREEQC mixing calculations and spatial geochemical variations suggest that the Ra in the oil-fi

298 mantle and are a major gateway in the global geochemical water cycle.

299 analysis of palynological (chitinozoan) and geochemical (XRF) data, to evaluate whether the limeston

300 rate of the degradation process in different geochemical zones remain elusive.