ライフサイエンスコーパス: sediment

1 and did not change with age and depth of the sediment.

2 or long-term in situ application in soil and sediment.

3 otrophs was successful only from the low-TOC sediment.

4 /m(2)) on the beach was buried <10 cm in the sediment.

5 f uptake of fluoxetine and diclofenac from a sediment.

6 ith the remainder primarily in the surficial sediment.

7 significant potential source of contaminated sediments.

8 h as four times more than in low OC deep sea sediments.

9 ecent release of fresh water within the deep sediments.

10 , soil development and OM export to the lake sediments.

11 le-near-infrared (VNIR) spectroscopy on lake sediments.

12 barcode sedDNA retrieved from subrecent lake sediments.

13 educe Mn(IV) and Fe(III) oxides in anaerobic sediments.

14 hin fixed solid matrices common to soils and sediments.

15 ncorporated ligands that are present in oxic sediments.

16 nct layers of ice-rafted debris in the ocean sediments.

17 tanding stock of microplastics within marine sediments.

18 0 mum size range, of Irish continental shelf sediments.

19 onitoring HC contamination in unconsolidated sediments.

20 gas hydrates deeper than a few metres in the sediments.

21 e of which ultimately reaches the underlying sediments.

22 revealed a predominance of microalgae in the sediments.

23 rgence between the kauri and Atlantic marine sediment (14)C data sets, implying limited changes in de

24 nts, occur worldwide in many Cambrian marine sediments [6, 7].

25 e water-sediment interface and top 0.5 cm of sediments (66%).

26 Indus-derived sediment accelerated the infilling of GRK after 6 ka wh

27 hat fine grained, sulfidic, organic-enriched sediments accumulate U in its reduced form, U(IV), which

28 ll to approximately 25.5 Myr and reveal that sediment accumulated continuously until approximately 4.

29 bles twice a day by entering and leaving the sediment, also transport porewater methane within their

30 NP concentrations (20, 50 and 500 mg/Kg) in sediments amended with different percentage of rice stra

31 , elevated platinum abundances were found in sediment analysed from three out of four fossil skulls.

32 Detailed sediment analyses reveal abrupt changes in lithology, pe

33 ew Bedford Harbor sediment (MA, U.S.A.), (2) sediment and biota, and (3) activated carbon amended sed

34 and biota, and (3) activated carbon amended sediment and biota.

35 arsh and mangrove assemblages were accreting sediment and building vertically at equivalent rates.

36 dent time markers are essential to correlate sediment and ice cores from the terrestrial, marine and

37 that GAMs with organic carbon content of the sediment and latitude and longitude as co-variates expla

38 However, high concentrations of cVMS in sediment and low concentrations in water could be explai

39 The resulting shifts in sediment and meltwater delivery from changes in glacier

40 l metal and metal speciation was measured in sediment and plant samples collected 1, 3, 6, and 9 mont

41 PBDE congeners were measured in air, water, sediment and porewater of the lower Passaic River.

42 PCBs remain in the water column and surface sediments and are likely to contribute to the future eff

43 ntamination is ubiquitous within superficial sediments and bottom water along the western Irish conti

44 eral concentrations were elevated in surface sediments and bound a substantial proportion of Ni.

45 Mussels live in stream sediments and can be challenging to survey given constra

46 New ages for flowstone, sediments and fossil bones from the Dinaledi Chamber are

47 The chronology of the sediments and planting records are well aligned, and sed

48 f a reservoir left geochemical signatures in sediments and porewaters corresponding to peak industria

49 within structured media simulating soils and sediments and provide insight into how fluctuating hydro

50 comparison of bromeliads to freshwater lake sediments and soil from around the world, revealed stark

51 s indicates that the availability of mineral sediments and terrestrial derived OC may exert a strong

52 te rapid diffusion of groundwater within the sediments and the presence of nonuraninite U(IV) species

53 In sediments and water, the dual OC + BC approach better pr

54 The aromatic fractions of snow, lake sediment, and air samples collected during 2011-2014 in

55 through inner-sphere complexation in coastal sediments, as much as four times more than in low OC dee

56 In the most reduced intermediate sediments at 80-120 cm of the western floodplain, no Fe(

57 IV) accumulation in organic-enriched reduced sediments at three UCRB floodplains.

58 years at current rates of sea-level rise and sediment availability.

59 ntation of nodule pixels from pixels showing sediment background.

60 thesized creation of disequilibrium in water-sediment balance following decoupling of hillslopes from

61 ion capacity was 4 times higher in vegetated sediments because of a combination of enhanced nitrifica

62 entified two small microniches in the anoxic sediment below the SWI, defined by elevated trace metal

63 river breach in 2011, however, incorporating sediment biogeochemical feedbacks is required to reprodu

64 ed micro-FTIR analyses of water, wastewater, sediment, biota, and food samples.

65 munities to parameterise numerical models of sediment bioturbation - a key mediator of biogeochemical

66 These reduced sediment bodies can subsequently act as secondary source

67 Here we show that sediment budgets of eight microtidal marsh complexes con

68 Marsh sediment budgets represent a spatially integrated measur

69 water exchange, and the output flows due to sediment burial, volatilization from water to air, and t

70 ies contaminants of concern in urban wetland sediments by assessing sediment toxicity using the amphi

71 tions in the pore water of the corresponding sediments can only be explained by initial deposition of

72 is responsible for the transport and fate of sediment, carbon, nutrients, pollutants, pathogens and m

73 of the saprolitic mantle into the overlying sediment cascade system.

74 Rapid sediment clearance occurred that was potentially aided b

75 into water, indicating 4-MCHM was present in sediment collected 10 months post spill.

76 inated congeners were reduced throughout the sediment column indicating that both anaerobic reductive

77 nprecedented sensitivity throughout Holocene sediment columns from the Baltic Sea.

78 Sediment columns were then exposed to selected treatment

79 le is known about meiofaunal biodiversity in sediment communities, which are a vital part of a health

80 umn, while downstream MWCNT surface and deep sediment concentrations exhibited a general increase wit

81 We characterized spatial patterns of surface sediment concentrations of seven polychlorinated bipheny

82 a. 75% of the variability of the contaminant sediment concentrations.

83 cing similar flux, suggesting that localized sediment conditions are important to controlling bubble

84 All sediments contain abundant genes for autotrophic carbon

85 analyses of flowstones to establish that all sediments containing Homo naledi fossils can be allocate

86 sensitivity of Austrochiltonia spp. to urban sediment contamination and identifies bifenthrin as a co

87 -11 N degrees ) imply less subducted pelagic sediment contribution compared to farther north.

88 nd Delta(14)C results on foraminifera from a sediment core at 5.0 km in the northern subtropics show

89 Consistent with this, anoxic incubation of a sediment core resulted in an accumulation of these compo

90 e tracer (excess (210)Pb, (210)Pbxs) from 32 sediment cores collected from 2010 to 2013 to characteri

91 Thus, we exposed intact sediment cores containing European flat oysters (Ostrea

92 A total of 148 groundwater samples and 4 sediment cores were collected along a 1200-m-long downgr

93 using sea-floor geophysical data and marine sediment cores, we resolve the record of glaciation offs

94 h American mercury records from ice and lake sediment cores.

95 at the local scale, near-surface heating of sediment creates short and massive DOC discharge events

96 C8-C36 CPs were found in sediment dating back to the 1930s.

97 The presence of aquifer sediments decreased the efficiency of the remedial proce

98 cal growth and/or lateral expansion, while a sediment deficit may result in drowning and/or lateral c

99 All sites are exhibiting a sediment deficit, with half the sites having projected l

100 each obstacle as an esker ridge formed from sediments deposited by subglacial water conduits, and ca

101 xamining a 300-m drill core of Mediterranean sediments deposited over the past 500,000 y and spanning

102 subsequent channel bed aggradation (that is, sediment deposition by a river) following the 1999 Chi-C

103 the 1940s to 1980s, but prograded (that is, sediment deposition extended the delta into the sea) in

104 ated with palaeo-OMZ proxies, independent of sediment depth and available nitrate and nitrite.

105 s were found to reside shallower than 2.5 cm sediment depth, with the area of highest microplastic co

106 ctive hydrothermal centres and decrease with sediment depth.

107 cal analysis of an Australian coastal marine sediment-derived fungus, Phomopsis sp. (CMB-M0042F), yie

108 Significant fluxes of filterable and sediment-derived iron (1-10 Gg a(-1) and 100-1,000 Gg a(

109 erstanding of coastal FDOM sources and early sediment diagenesis.

110 t grain-size disposition in subsurface sandy sediments drives the interstitial fluxes, influencing mi

111 ate that 1.03 Pg C was buried in Lake Baikal sediments during the Holocene, almost one-quarter of whi

112 numerical model that simulates both ice and sediment dynamics, the authors show that internal dynami

113 In microcosm sediments, Ea was somewhat lower for anammox compared to

114 s, especially regarding the heterogeneity of sediment element composition and its ecological conseque

115 g the relationship between the change in the sediment element composition and the alteration in the p

116 A sophisticated understanding of sediment elevation dynamics in mangroves and tidal marsh

117 on from erosion of anthropogenically labeled sediments elsewhere in the estuary.

118 (IV) adsorption to organic matter within the sediment environment.

119 e incorporation of realistic calculations of sediment erosion, transport and deposition.

120 ay a role in Ni bioavailability in surficial sediments exposed to effluent from two mine sites.

121 Finally, high sediment exposure caused an immediate reduction in respi

122 A distinct sediment facies recovered from a bedrock basin in Pine I

123 uration may impact interpretations of marine sediments, fjord geochemistry, and marine ecosystems.The

124 ons that maximize the diversity of water and sediment flux delivery to the shoreline.

125 We used an upper bound estimate of paleo-sediment flux to investigate the lower bound duration ov

126 Later in Holocene, under a drying climate, sediments from the Thar Desert probably choked the signa

127 Sediments from three areas (two cold seeps with contrast

128 We coupled spatially explicit sediment geochemistry (i.e., separate oxic and suboxic)

129 ctive dechlorination in relation to riverbed sediment geochemistry remain ill-defined.

130 Field analysis of sediment gouge cores established discrete lithostratigra

131 Here we present an analysis of fan geometry, sediment grain size and lithology in the Ganga Basin.

132 anic carbon fraction (strongly correlated to sediment grain size) appeared as a more important contro

133 The host sediments had microplastic concentrations ranging from 5

134 rapid oxidant consumption suggested that the sediments harbored large concentrations of bioavailable

135 Ocean margin sediments have been considered as important sources of d

136 In the sediment heated up to 100 degrees C, we found unexpecte

137 Our results suggest that local sediment heterogeneity supports/selects divergent VC deg

138 Naturally reduced zones (NRZs) containing sediments higher in organic matter, iron sulfides, and n

139 orbents and organic matter (OM) in soils and sediments; however, this tertiary system has rarely been

140 nitrification capacity in marsh and subtidal sediments impacted by the Deepwater Horizon oil spill us

141 Zs have been increasingly deposited into the sediment in recent decades, and deserve further environm

142 vidence showing that near-surface heating of sediment in the Guaymas Basin, a young extensional depre

143 Treatments with fine sediment in the upper 20 cm of the columns showed high p

144 tyrka recovered from fine-grained, clay-rich sediments in the Koryak Mountains, Chukotka (Russia).

145 ased and the amount of calcium in centrifuge sediment increased along with the serum calcium.

146 nd benthic foraminifer assemblages in marine sediments indicate that enhanced CDW upwelling, controll

147 t microplastic concentration being the water-sediment interface and top 0.5 cm of sediments (66%).

148 contribution of OC-complexed Fe to the total sediment iron and reactive iron pools, showing that 25-6

149 Organic matter in permeable sediments is dominated by microalgae, which as eukaryote

150 majority of methane produced in many anoxic sediments is released via ebullition.

151 es shows that the concentration of OC in the sediments is strongly inversely correlated to grainsize.

152 minant of Cr(VI) generation within soils and sediments is the necessary interaction of two low-solubi

153 ests, and these were distinct from the ocean sediment isolates.

154 Sediment layers corresponding to the years of maximum O&

155 lative influence of factors controlling PFAS sediment levels.

156 Sediment levitation must therefore be considered when ev

157 yan mountain range carry some of the largest sediment loads on the planet, yet coarse gravel in these

158 Suspension accounted for 67.4 to 84.8% of sediment loss across all high wind events.

159 Bs) in mesocosms with (1) New Bedford Harbor sediment (MA, U.S.A.), (2) sediment and biota, and (3) a

160 other particulate components of the ingested sediment matrix.

161 eas, permanent binding of mobile P in anoxic sediments may be needed together with measures in the ca

162 larvae, in addition to potentially releasing sediment methane bubbles twice a day by entering and lea

163 loads to nearshore marine ecosystems through sediment microbial processes such as denitrification.

164 sizes of calcareous plankton, combined with sediment mixing, can explain the observations.

165 se records using an Earth system model and a sediment-mixing model and extract the likely PETM onset

166 Instead, we use a novel sediment-mixing model to show how changes in the relativ

167 climate change alone on vegetation cover and sediment mobility may be relatively small.

168 ered bacteria is an important contributor to sediment N2 production.

169 Sediment OC stocks did not differ between mangrove and s

170 d of approximately 4,100,000-5,200,000 Mg of sediment OC.

171 er total mercury concentrations in water and sediment of higher latitude lakes.

172 2-4, or having iodine, were more abundant in sediment of Lake Michigan deposited before 1900 than tho

173 t fluorinated compounds in surface water and sediment of the Tennessee River near Decatur, Alabama.

174 Here we present multi-proxy data from the sediments of Lake Suigetsu (Japan), as evidence that a r

175 The seafloor sediments of Spathi Bay, Milos Island, Greece, are part

176 Oil and gas percolate profusely through the sediments of the Gulf of Mexico, leading to numerous see

177 ns and isotopic compositions measured in the sediments of the harbor of Ostia-Rome's first harbor-sho

178 d rapidly, and ultimately accumulated in the sediments of the nGoM.

179 very Program Expedition 362 sampled incoming sediments offshore northern Sumatra, revealing recent re

180 ics within some smectite-containing rocks or sediments on Mars.

181 There were no signs of DNA leaching in the sediments or DNA originating from pollen.

182 ected by the activity of different guilds in sediments or wastewater treatment systems.

183 eir obstructed natural environment in soils, sediments, or mucus.

184 We assessed variation in sediment organic carbon (OC) stocks among different geom

185 are critical to the preservation of soil and sediment organic matter.

186 36, as well as C8-C17 CPs, are persistent in sediments over the last 50-80 years, indicating that CPs

187 n and anammox did not differ in Rhode Island sediments over the seasonal cycle.

188 rus (P) flux between pre-European and modern sediment P accumulation rates (AR) in this lake.

189 tions significantly increase with increasing sediment P/Fe concentration ratio (p < 0.01).

190 In sediments, PFAAs displayed relatively low concentrations

191 dily detected at the seafloor by quantifying sediment phospholipid fatty acids (PLFAs) and their carb

192 water oxygen deficiency and in turn promotes sediment phosphorus (P) release (A).

193 ults suggest that stable isotope analysis of sediment PLFAs has potential for monitoring the environm

194 the Amazon basin's floodplains, estuary and sediment plume.

195 Sulfur-enriched DOM in sediment pore waters exchanges with overlying surface wa

196 The sediment pore waters of PPR wetlands contain some of the

197 o measure freely dissolved concentrations in sediment porewater has been sufficiently advanced for or

198 ong oxic epilimnion, anoxic hypolimnion, and sediment porewater.

199 ecause interpretations can be complicated by sediment preservation, uncertainties in chronology, and

200 water oceanic MeHg sources into deeper water sediments prior to food web uptake and transfer.

201 Sediment provenance implies a sustained source in the Ea

202 -state emissions from cVMS concentrations in sediment provided unrealistically high emissions, when e

203 poorly constrained due to lack of continuous sediment proxy records of Arctic Ocean temperature, sea

204 se findings indicate that earthquake-induced sediment pulses sourced from the Greater Himalayas, such

205 redinidae (shipworms) that burrows in marine sediments rather than wood.

206 Overall, sediment reactivity was nondestructively imaged over an

207 PNA) using a 2100-year-long multi-proxy lake-sediment record from the midcontinental US.

208 Marine sediment records suggest that episodes of major atmosphe

209 nuclide biogeochemistry throughout realistic sediment redox cycling regimes.

210 At a sedimented reef in Indonesia (Wakatobi) corals have decl

211 e times the sedimentation rate of the highly sedimented reef.

212 Sterilized, impacted, spill-site sediment released minor amounts of cis- and up to 35 mug

213 Provided that the sediment remains undisturbed, the buried oil is unlikely

214 ment of mitochondrial DNA, we show that cave sediments represent a rich source of ancient mammalian D

215 Current sediment risk assessment approaches consider acid-volati

216 Therefore, contaminated sediment risks causing toxicity to aquatic fauna.

217 re, we quantify the link between terrestrial sediment runoff and a downstream coastal marine ecosyste

218 t was obtained from a deep-water Great Lakes sediment sample.

219 o 168 distinct hydrocarbon analytes in 2,980 sediment samples collected within 4 y of the spill, we d

220 tegorize the microbial community in mangrove sediment samples from four different locations within a

221 ed organic carbon (DOC) were fractionated in sediment samples from the four wetlands (ZR: Zhaoniu Riv

222 :2-FTSA) were ubiquitously identified in the sediment samples surveyed.

223 Here, we analyzed nine sediment samples taken at the HAUSGARTEN observatory in

224 a River HZ, the grain size distributions for sediment samples were characterized to define geological

225 In this work, 112 Ponar grab and 28 core sediment samples were collected from Lakes Michigan, Sup

226 By automation-assisted screening of numerous sediment samples, we detected Neandertal DNA in eight ar

227 8, 160, and 1400 ng/g d.w., respectively, in sediment sections dated from the early 1990s or the 2000

228 Density separation by MicroPlastic Sediment Separator and treatment with Fenton's reagent e

229 king photosynthetic organic matter in a soft-sediment setting creates geochemically diverse environme

230 tions, no fractionation between seawater and sediment should be observed if molybdate (MoO4(2-)) is q

231 nnections in a laboratory river with bimodal sediment size, by tracking the motion of particles from

232 ght to provide coastal defence and encourage sediment stabilisation and surface elevation.

233 ed landward extremes, particularly along the sediment-starved California coast.

234 In this unique long-term study, aquifer sediments subjected to reductive Cr(VI) immobilization u

235 s in the tetravalent state, U(IV), in anoxic sediments, such as ore deposits, marine basins, and cont

236 impacted Welland River and between water and sediment suggested differences in the persistence of var

237 distances (>100 km) in snow and surface lake sediments, suggesting that the impact of industry can ex

238 gh particulate organic content of the lagoon sediment, suggests acclimatisation to this trio of tempe

239 remineralization of organic matter in marine sediments, sulfate reduction coupled to fermentation pla

240 rallels patterns in erosion rates (and hence sediment supplies).

241 Our findings demonstrate that sediment supply is encoded in the bankfull hydraulic geo

242 rable systems such as those with low mineral sediment supply or where migration upwards within the ti

243 , suggesting channels accommodate changes in sediment supply through adjustments in bed surface grain

244 oted by high tectonic subsidence and fluvial sediment supply.

245 aper presents the first multi-site study for sediment surface elevation in seagrasses in different se

246 nction ecosystem recovery by stabilizing the sediment surface, allowing sessile suspension feeders su

247 eting constructive and destructive forces: a sediment surplus may result in vertical growth and/or la

248 be an optimal biochar percentage in biochar-sediment systems at different HOC concentrations, which

249 an acetate/lactate electron donor mix in the sediments tested.

250 To examine the relationship between sediment texture, biogeochemistry, and biological activi

251 all microbial community respond to different sediment texture.

252 0 kg km(-2) a(-1)) associated with suspended sediment than icebergs (0-241 kg km(-2) a(-1)).

253 mate zones but significantly higher in river sediments than in coasts.

254 te sulfidic conditions in freshwater wetland sediments that affect ecological and biogeochemical proc

255 ) oxides in soil grains and low permeability sediments that are sequestered in pore spaces too small

256 odynamic measurements and analyses of seabed sediments, the period when bed shear stress due to combi

257 ndardised dataset for benthic macrofauna and sediments through integration of data (33,198 samples) f

258 er which the ice stream would have deposited sediment to account for the GZW volume.

259 s in tributary and open lake water, air, and sediment to calculate an updated mass budget.

260 governing U release upon exposure of reduced sediments to artificial groundwater containing O2 or NO3

261 es concentrated in clays within caldera lake sediments to potentially economically extractable levels

262 ng (paleo)productivity proxies in lacustrine sediments to reconstruct past changes in primary product

263 HM (1) to undergo biodegradation and (2) for sediments to serve as a long-term source of 4-MCHM.

264 cern in urban wetland sediments by assessing sediment toxicity using the amphipod Austrochiltonia sub

265 Sediment transport and factors governing transport were

266 Therefore, aeolian sediment transport and loss was assessed from a desert-o

267 to the martian atmosphere will boil, and the sediment transport capacity of such unstable water is no

268 tions between ice flow, glacial erosion, and sediment transport drive these cycles, which occur indep

269 l be critical in the development of cohesive sediment transport models.

270 Sediment transport where this mechanism is active is abo

271 r shrinkage will alter hydrological regimes, sediment transport, and biogeochemical and contaminant f

272 al model, which fully couples vegetation and sediment-transport dynamics, to simulate potential lands

273 transport mechanism that is not captured by sediment traps and is poorly quantified by most models a

274 the response of rivers to large influxes of sediment triggered by earthquakes or storms.

275 deltas self-organize to distribute water and sediment up to the shoreline remains elusive.

276 s on N2O production mechanisms in intertidal sediments using novel isotopic approaches and microsenso

277 nt of water required to transport comparable sediment volumes by nearly an order of magnitude.

278 reduce the overall concentration of PCBs in sediment was determined in 2 L recirculating mesocosms d

279 , because the gas emission from these Arctic sediments was thought to result from gas hydrate dissoci

280 metacommunity constituted of three habitats (sediment, water column and fish gut) in a coastal lagoon

281 nal processes of settling, resuspension, and sediment-water diffusion.

282 Calculated sediment-water diffusive fluxes greatly overwhelmed the

283 Laboratory static sediment-water incubations with different DO and tempera

284 er (POM) induces diagenetic hot spots at the sediment-water interface (SWI).

285 ortant mixing mechanism, particularly at the sediment-water interface in many natural systems.

286 e contents of Cu, Mn, N, Ni, S and As in the sediments were critical in considering the relationship

287 Finely-laminated sediments were deposited from ca. 5000 years ago until t

288 Terrestrial freshwater inputs to coastal sediments were identified as the primary source of tissu

289 out leading to export of U from the reducing sediments when ample organic carbon is present.

290 al Pacific will generate plumes of suspended sediment which are anticipated to be ecologically harmfu

291 undance were found in either the seawater or sediment, which is consistent with the hypothesis of env

292 arborane biomarkers in Permian and Triassic sediments, which predates the accepted origin of angiosp

293 and Paraburkholderia xenovorans cells g(-1) sediment with 1.5% AC as a delivery system.

294 h mobilization of P to the water column from sediments with a molar P/Fe ratio >0.4.

295 and LCCPs (C>/=18 CPs) predominated in most sediments with average percentage compositions of 47 +/-

296 aerobic metabolic VC oxidation was absent in sediments with high total organic carbon (TOC) and VC wa

297 olically oxidized by ethenotrophs in low-TOC sediments with low reductive dechlorination potential.

298 optically stimulated luminescence dating of sediments with U-Th and palaeomagnetic analyses of flows

299 the authors demonstrate that preserved lake sediments within rhyolitic calderas have the potential t

300 The microbial community from sediments without any influence from hydrocarbon seepage