Abstract
Marine sediments are the most significant reservoir of organic carbon (OC) in Earth’s surface system. Iron, a crucial component of the marine biogeochemical cycle, has a considerable impact on marine ecology and carbon cycling. Understanding the effect of iron on the preservation of OC in marine sediments is essential for comprehending biogeochemical processes of carbon and climate change. This review summarizes the methods for characterizing the content and structure of iron-bound OC and explores the influencing mechanism of iron on OC preservation in marine sediments from two aspects: the selective preservation of OC by reactive iron minerals (iron oxides and iron sulfides) and iron redox processes. The selective preservation of sedimentary OC is influenced by different types of reactive iron minerals, OC reactivity, and functional groups. The iron redox process has dual effects on the preservation and degradation of OC. By considering sedimentary records of iron-bound OC across diverse marine environments, the role of iron in long-term preservation of OC and its significance for carbon sequestration are illustrated. Future research should focus on identifying effective methods for extracting reactive iron, the effect of diverse functional groups and marine sedimentary environments on the selective preservation of OC, and the mediation of micro-organisms. Such work will help elucidate the influencing mechanisms of iron on the long-term burial and preservation of OC and explore its potential application in marine carbon sequestration to maximize its role in achieving carbon neutrality.
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References
Adhikari D, Poulson S R, Sumaila S, Dynes J J, McBeth J M, Yang Y. 2016. Asynchronous reductive release of iron and organic carbon from hematite-humic acid complexes. Chem Geol, 430: 13–20
Adhikari D, Yang Y. 2015. Selective stabilization of aliphatic organic carbon by iron oxide. Sci Rep, 5: 11214
Aller R C. 2004. Conceptual models of early diagenetic processes: The muddy seafloor as an unsteady, batch reactor. J Mar Res, 62: 815–835
Anbar A D, Knoll A H. 2002. Proterozoic ocean chemistry and evolution: A bioinorganic bridge? Science, 297: 1137–1142
Arnarson T S, Keil R G. 2000. Mechanisms of pore water organic matter adsorption to montmorillonite. Mar Chem, 71: 309–320
Asaoka S, Jadoon W A, Umehara A, Takeda K, Otani S, Ohno M, Fujitake N, Sakugawa H, Okamura H. 2020. Organic matter degradation characteristics of coastal marine sediments collected from the Seto Inland Sea, Japan. Mar Chem, 225: 103854
Baas Becking L G M, Moore D. 1959. The relation between iron and organic matter in sediments. Sedim Petrol, 29: 454–458
Bao Y, Bolan N S, Lai J, Wang Y, Jin X, Kirkham M B, Wu X, Fang Z, Zhang Y, Wang H. 2021. Interactions between organic matter and Fe (hydr)oxides and their influences on immobilization and remobilization of metal(loid)s: A review. Crit Rev Environ Sci Tech, 52: 4016–4037
Barber A, Brandes J, Leri A, Lalonde K, Balind K, Wirick S, Wang J, Gélinas Y. 2017. Preservation of organic matter in marine sediments by inner-sphere interactions with reactive iron. Sci Rep, 7: 366
Barber A, Lalonde K, Mucci A, Gélinas Y. 2014. The role of iron in the diagenesis of organic carbon and nitrogen in sediments: A long-term incubation experiment. Mar Chem, 162: 1–9
Berner R A. 1984. Sedimentary pyrite formation: an update. Geochim Cosmochim Acta, 48: 605–615
Berner R A. 2003. The long-term carbon cycle, fossil fuels and atmospheric composition. Nature, 426: 323–326
Bianchi T S. 2011. The role of terrestrially derived organic carbon in the coastal ocean: A changing paradigm and the priming effect. Proc Natl Acad Sci USA, 108: 19473–19481
Bianchi T S, Cui X, Blair N E, Burdige D J, Eglinton T I, Galy V. 2018. Centers of organic carbon burial and oxidation at the land-ocean interface. Org Geochem, 115: 138–155
Blair N E, Aller R C. 2012. The fate of terrestrial organic carbon in the marine environment. Annu Rev Mar Sci, 4: 401–423
Bolney R, Grosch M, Winkler M, van Slageren J, Weigand W, Robl C. 2021. Mackinawite formation from elemental iron and sulfur. RSC Adv, 11: 32464–32475
Boudot J P, Bel Hadj Brahim A, Steiman R, Seigle-Murandi F. 1989. Biodegradation of synthetic organo-metallic complexes of iron and aluminium with selected metal to carbon ratios. Soil Biol Biochem, 21: 961–966
Burdige D J. 1993. The biogeochemistry of manganese and iron reduction in marine sediments. Earth-Sci Rev, 35: 249–284
Burdige D J. 2007. Preservation of organic matter in marine sediments: Controls, mechanisms, and an imbalance in sediment organic carbon budgets? Chem Rev, 107: 467–485
Canfield D E, Jørgensen B B, Fossing H, Glud R, Gundersen J, Ramsing N B, Thamdrup B, Hansen J W, Nielsen L P, Hall P O J. 1993. Pathways of organic carbon oxidation in three continental margin sediments. Mar Geol, 113: 27–40
Charette M A, Sholkovitz E R. 2002. Oxidative precipitation of ground-water-derived ferrous iron in the subterranean estuary of a coastal bay. Geophys Res Lett, 29:85-1–85-4
Chen C, Dynes J J, Wang J, Sparks D L. 2014. Properties of Fe-organic matter associations via coprecipitation versus adsorption. Environ Sci Technol, 48: 13751–13759
Chen C, Hall S J, Coward E, Thompson A. 2020. Iron-mediated organic matter decomposition in humid soils can counteract protection. Nat Commun, 11: 2255
Chen C, Sparks D L. 2018. Fe(II)-induced mineral transformation of fer-rihydrite-organic matter adsorption and co-precipitation complexes in the absence and presence of As(III). ACS Earth Space Chem, 2: 1095–1101
Chen C, Thompson A. 2021. The influence of native soil organic matter and minerals on ferrous iron oxidation. Geochim Cosmochim Acta, 292: 254–270
Cismasu A C, Williams K H, Nico P S. 2016. Iron and carbon dynamics during aging and reductive transformation of biogenic ferrihydrite. Environ Sci Technol, 50: 25–35
Cornell R M, Schwertmann U. 1979. Influence of organic anions on the crystallization of ferrihydrite. Clays Clay Miner, 27: 402–410
Cui X, Mucci A, Bianchi T S, He D, Vaughn D, Williams E K, Wang C, Smeaton C, Koziorowska-Makuch K, Faust J C, Plante A F, Rosenheim B E. 2022. Global fjords as transitory reservoirs oflabile organic carbon modulated by organo-mineral interactions. Sci Adv, 8: eadd0610
Curti L, Moore O W, Babakhani P, Xiao K Q, Woulds C, Bray AW, Fisher B J, Kazemian M, Kaulich B, Peacock C L. 2021. Carboxyl-richness controls organic carbon preservation during coprecipitation with iron (oxyhydr)oxides in the natural environment. Commun Earth Environ, 2: 1–3
Daugherty E E, Gilbert B, Nico P S, Borch T. 2017. Complexation and redox buffering of Iron(II) by dissolved organic matter. Environ Sci Technol, 51: 11096–11104
Davis J A. 1982. Adsorption of natural dissolved organic matter at the oxide/water interface. Geochim Cosmochim Acta, 46: 2381–2393
Dicen G P, Navarrete I A, Rallos R V, Salmo Iii S G, Garcia M C A. 2019. The role of reactive iron in long-term carbon sequestration in mangrove sediments. J Soils Sedim, 19: 501–510
Eglinton T I. 2012. A rusty carbon sink. Nature, 483: 165–166
Eusterhues K, Neidhardt J, Hädrich A, Küsel K, Totsche K U. 2014. Biodegradation of ferrihydrite-associated organic matter. Biogeochemistry, 119: 45–50
Eusterhues K, Rennert T, Knicker H, Kögel-Knabner I, Totsche K U, Schwertmann U. 2011. Fractionation of organic matter due to reaction with ferrihydrite: Coprecipitation versus adsorption. Environ Sci Technol, 45: 527–533
Eusterhues K, Wagner F E, Häusler W, Hanzlik M, Knicker H, Totsche K U, Kögel-Knabner I, Schwertmann U. 2008. Characterization of ferri-hydrite-soil organic matter coprecipitates by X-ray diffraction and Mössbauer spectroscopy. Environ Sci Technol, 42: 7891–7897
Evanko C R, Dzombak D A. 1998. Influence of structural features on sorption of NOM-analogue organic acids to goethite. Environ Sci Technol, 32: 2846–2855
Evans L T, Russell E W. 1959. The adsorption ofhumic and fulvic acids by clays. J Soil Sci, 10: 119–132
Falkowski P, Scholes R J, Boyle E, Canadell J, Canfield D, Elser J, Gruber N, Hibbard K, Högberg P, Linder S, Mackenzie F T, Moore III B, Pedersen T, Rosenthal Y, Seitzinger S, Smetacek V, Steffen W. 2000. The global carbon cycle: A test of our knowledge of earth as a system. Science, 290: 291–296
Faust J C, Ascough P, Hilton R G, Stevenson M A, Hendry K R, März C. 2023. New evidence for preservation of contemporary marine organic carbon by iron in Arctic shelf sediments. Environ Res Lett, 18: 014006
Faust J C, Stevenson M A, Abbott G D, Knies J, Tessin A, Mannion I, Ford A, Hilton R, Peakall J, März C. 2020. Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? Phil Trans R Soc A, 378: 20190364
Faust J C, Tessin A, Fisher B J, Zindorf M, Papadaki S, Hendry K R, Doyle K A, März C. 2021. Millennial scale persistence of organic carbon bound to iron in Arctic marine sediments. Nat Commun, 12: 1–9
Filius J D, Lumsdon D G, Meeussen J C L, Hiemstra T, Van Riemsdijk W H. 2000. Adsorption of fulvic acid on goethite. Geochim Cosmochim Acta, 64: 51–60
Fisher B, März C, Faust J, Moore O, Peacock C. 2020. What’s af (Fe) cting OC-Fe interactions? An experimental approach to understanding iron bound OC in sediments. EGU General Assembly Conference, 855
Friese A, Bauer K, Glombitza C, Ordonez L, Ariztegui D, Heuer V B, Vuillemin A, Henny C, Nomosatryo S, Simister R, Wagner D, Bijaksana S, Vogel H, Melles M, Russell J M, Crowe S A, Kallmeyer J. 2021. Organic matter mineralization in modern and ancient ferruginous sediments. Nat Commun, 12: 2216
Gelting J, Breitbarth E, Stolpe B, Hassellöv M, Ingri J. 2010. Fractionation of iron species and iron isotopes in the Baltic Sea euphotic zone. Biogeosciences, 7: 2489–2508
Ghaisas N A, Maiti K, Roy A. 2021. Iron-mediated organic matter preservation in the Mississippi River-influenced shelf sediments. J Geophys Res Biogeosci, 126: e2020JG006089
Goñi M A, Yunker M B, Macdonald R W, Eglinton T I. 2005. The supply and preservation of ancient and modern components of organic carbon in the Canadian Beaufort Shelf of the Arctic Ocean. Mar Chem, 93: 53–73
Gu B, Schmitt J, Chen Z, Liang L, McCarthy J F. 1994. Adsorption and desorption of natural organic matter on iron oxide: Mechanisms and models. Environ Sci Technol, 28: 38–46
Gu B, Schmitt J, Chen Z, Liang L, McCarthy J F. 1995. Adsorption and desorption of different organic matter fractions on iron oxide. Geochim Cosmochim Acta, 59: 219–229
Haese R R, Wallmann K, Dahmke A, Kretzmann U, Müller P J, Schulz H D. 1997. Iron species determination to investigate early diagenetic reactivity in marine sediments. Geochim Cosmochim Acta, 61: 63–72
Hartnett H E, Keil R G, Hedges J I, Devol A H. 1998. Influence of oxygen exposure time on organic carbon preservation in continental margin sediments. Nature, 391: 572–575
Hedges J I, Keil R G. 1995. Sedimentary organic matter preservation: An assessment and speculative synthesis. Mar Chem, 49: 81–115
Hedges J I, Keil R G, Benner R. 1997. What happens to terrestrial organic matter in the ocean? Org Geochem, 27: 195–212
Hemingway J D, Rothman D H, Grant K E, Rosengard S Z, Eglinton T I, Derry L A, Galy V V. 2019. Mineral protection regulates long-term global preservation of natural organic carbon. Nature, 570: 228–231
Henneberry Y K, Kraus TEC, Nico P S, Horwath W R. 2012. Structural stability of coprecipitated natural organic matter and ferric iron under reducing conditions. Org Geochem, 48: 81–89
Huang Y, Wang C. 2009. Progress of the study of reactive iron cycling in the paleo-ocean and its applications to the genesis of Cretaceous anoxicoxic sedimentary transition (in Chinese). Earth Sci Front, 16: 172–180
Islam M A, Morton D W, Johnson B B, Angove M J. 2020. Adsorption of humic and fulvic acids onto a range of adsorbents in aqueous systems, and their effect on the adsorption of other species: A review. Separ Purific Tech, 247: 116949
Jiao N, Li C, Wang X. 2016. Response and feedback of marine carbon sink to climate change (in Chinese). Advanc Earth Sci, 31: 668–681
Jilbert T, Asmala E, Schröder C, Tiihonen R, Myllykangas J P, Virtasalo J J, Kotilainen A, Peltola P, Ekholm P, Hietanen S. 2018. Impacts of flocculation on the distribution and diagenesis of iron in boreal estuarine sediments. Biogeosciences, 15: 1243–1271
Jørgensen B B. 1982. Mineralization of organic matter in the sea bed—The role of sulphate reduction. Nature, 296: 643–645
Kaiser K, Guggenberger G. 2000. The role of DOM sorption to mineral surfaces in the preservation of organic matter in soils. Org Geochem, 31: 711–725
Keil R G, Cowie G L. 1999. Organic matter preservation through the oxygen-deficient zone of the NE Arabian Sea as discerned by organic carbon: Mineral surface area ratios. Mar Geol, 161: 13–22
Keil R G, Mayer L M. 2014. Mineral matrices and organic matter. In: Turekian K, Holland H, eds. Treatise on Geochemistry. 2nd ed. Amsterdam: Elsevier Science Ltd. 337–359
Keil R G, Montluçon D B, Prahl F G, Hedges J I. 1994. Sorptive preservation of labile organic matter in marine sediments. Nature, 370: 549–552
Keiluweit M, Kleber M. 2009. Molecular-level interactions in soils and sediments: The role of aromatic π-systems. Environ Sci Technol, 43: 3421–3429
Kleber M, Bourg I C, Coward E K, Hansel C M, Myneni S C B, Nunan N. 2021. Dynamic interactions at the mineral-organic matter interface. Nat Rev Earth Environ, 2: 402–421
Kleber M, Mikutta R, Torn M S, Jahn R. 2005. Poorly crystalline mineral phases protect organic matter in acid subsoil horizons. Eur J Soil Sci, 56: 717–725
Lalonde K, Mucci A, Ouellet A, Gélinas Y. 2012. Preservation of organic matter in sediments promoted by iron. Nature, 483: 198–200
Lenstra W K, Hermans M, Séguret M J M, Witbaard R, Behrends T, Dijkstra N, van Helmond N A G M, Kraal P, Laan P, Rijkenberg M J A, Severmann S, Teacǎ A, Slomp C P. 2019. The shelf-to-basin iron shuttle in the Black Sea revisited. Chem Geol, 511: 314–341
Li L, Cabán-Acevedo M, Girard S N, Jin S. 2014. High-purity iron pyrite (FeS2) nanowires as high-capacity nanostructured cathodes for lithiumion batteries. Nanoscale, 6: 2112–2118
Linkhorst A, Dittmar T, Waska H. 2017. Molecular fractionation of dissolved organic matter in a shallow subterranean estuary: The role of the iron curtain. Environ Sci Technol, 51: 1312–1320
Liu X, Zhang M, Li A, Fan D, Dong J, Jiao C, Chang X, Gu Y, Zhang K, Wang H. 2021. Depositional control on carbon and sulfur preservation onshore and offshore the Oujiang Estuary: Implications for the C/S ratio as a salinity indicator. Cont Shelf Res, 227: 104510
Liu X, Yan J. 2011. Advances in the role ofiron in marine sediments during early diagenesis (in Chinese). Advanc Earth Sci, 26: 482–492
Longman J, Faust J C, Bryce C, Homoky W B, März C. 2022. Organic carbon burial with reactive iron across global environments. Glob Biogeochem Cycle, 36: e2022GB007447
Longman J, Gernon T M, Palmer M R, Manners H R. 2021. Tephra deposition and bonding with reactive oxides enhances burial of organic carbon in the Bering Sea. Glob Biogeochem Cycle, 35: e2021GB007140
Lovley D R. 1991. Dissimilatory Fe(III) and Mn(IV) reduction. Microbiol Rev, 55: 259–287
Lückge A, Boussafir M, Lallier-Vergès E, Littke R. 1996. Comparative study of organic matter preservation in immature sediments along the continental margins of Peru and Oman. Part I: Results of petrographical and bulk geochemical data. Org Geochem, 24: 437–451
Lv J, Zhang S, Wang S, Luo L, Cao D, Christie P. 2016. Molecular-scale investigation with ESI-FT-ICR-MS on fractionation of dissolved organic matter induced by adsorption on iron oxyhydroxides. Environ Sci Technol, 50: 2328–2336
Lyons T W, Diamond C W, Planavsky N J, Reinhard C T, Li C. 2021. Oxygenation, life, and the planetary system during earth’s middle history: An overview. Astrobiology, 21: 906–923
Lyons T W, Droser M L, Lau K V, Porter S M. 2018. Early Earth and the rise of complex life. Emerg Top Life Sci, 2: 121–124, doi: https://doi.org/10.1042/ETLS20180093
Lyons T W, Reinhard C T, Planavsky N J. 2014. The rise of oxygen in Earth’s early ocean and atmosphere. Nature, 506: 307–315
Ma W W, Zhu M X, Yang G P, Li T. 2018. Iron geochemistry and organic carbon preservation by iron (oxyhydr)oxides in surface sediments of the East China Sea and the south Yellow Sea. J Mar Syst, 178: 62–74
Ma W W, Zhu M X, Yang G P, Li T, Li Q Q, Liu S H, Li J L. 2022. Stability and molecular fractionation of ferrihydrite-bound organic carbon during iron reduction by dissolved sulfide. Chem Geol, 594: 120774
Martin J H. 1990. Glacial-interglacial CO2 change: The iron hypothesis. Paleoceanography, 5: 1–13
Mayer L M. 1994. Relationships between mineral surfaces and organic carbon concentrations in soils and sediments. Chem Geol, 114: 347–363
Melton E D, Swanner E D, Behrens S, Schmidt C, Kappler A. 2014. The interplay of microbially mediated and abiotic reactions in the biogeo-chemical Fe cycle. Nat Rev Microbiol, 12: 797–808
Mikutta R, Lorenz D, Guggenberger G, Haumaier L, Freund A. 2014. Properties and reactivity of Fe-organic matter associations formed by coprecipitation versus adsorption: Clues from arsenate batch adsorption. Geochim Cosmochim Acta, 144: 258–276
Müller P J, Suess E. 1979. Productivity, sedimentation rate, and sedimentary organic matter in the oceans—I. Organic carbon preservation. Deep Sea Res Part A Oceanographic Res Papers, 26: 1347–1362
Nabeh N, Brokaw C, Picard A. 2022. Quantification of organic carbon sequestered by biogenic iron sulfide minerals in long-term anoxic laboratory incubations. Front Microbiol, 13: 662219
Nickel M, Vandieken V, Brüchert V, Jørgensen B B. 2008. Microbial Mn (IV) and Fe(III) reduction in northern Barents Sea sediments under different conditions of ice cover and organic carbon deposition. Deep Sea Res Part II-Top Stud Oceanogr, 55: 2390–2398
O’Day P A, Rivera Jr. N, Root R, Carroll S A. 2004. X-ray absorption spectroscopic study of Fe reference compounds for the analysis of natural sediments. Am Miner, 89: 572–585
Parfitt R L, Fraser A R, Farmer V C. 1977. Adsorption on hydrous oxides. III. Fulvic and humic acid on goethite, gibbsite and imogolite. J Soil Sci, 28: 289–296
Philippe A, Schaumann G E. 2014. Interactions ofdissolved organic matter with natural and engineered inorganic colloids: A review. Environ Sci Technol, 48:8946–8962
Picard A, Gartman A, Cosmidis J, Obst M, Vidoudez C, Clarke D R, Girguis P R. 2019. Authigenic metastable iron sulfide minerals preserve microbial organic carbon in anoxic environments. Chem Geol, 530: 119343
Raiswell R. 2006. Towards a global highly reactive iron cycle. J Geochem Explor, 88: 436–439
Raiswell R, Canfield D E. 2012. The Iron Biogeochemical Cycle Past and Present. Mclean: GeoScience World, 1: 1–220
Ransom B, Bennett R H, Baerwald R, Shea K. 1997. TEM study of in situ organic matter on continental margins: Occurrence and the “monolayer” hypothesis. Mar Geol, 138: 1–9
Reiller P, Amekraz B, Moulin C. 2006. Adsorption on hydrous oxides. III. Fulvic and humic acid on goethite, gibbsite and imogolite. Environ Sci Technol, 40: 2235–2241
Riedel T, Zak D, Biester H, Dittmar T. 2013. Iron traps terrestrially derived dissolved organic matter at redox interfaces. Proc Natl Acad Sci USA, 110: 10101–10105
Rothman D H, Hayes J M, Summons R E. 2003. Dynamics of the Neo-proterozoic carbon cycle. Proc Natl Acad Sci USA, 100: 8124–8129
Roy M, McManus J, Goñi M A, Chase Z, Borgeld J C, Wheatcroft R A, Muratli J M, Megowan M R, Mix A. 2013. Reactive iron and manganese distributions in seabed sediments near small mountainous rivers off Oregon and California (USA). Cont Shelf Res, 54: 67–79
Salvadó J A, Tesi T, Andersson A, Ingri J, Dudarev O V, Semiletov I P, Gustafsson Ö. 2015. Organic carbon remobilized from thawing permafrost is resequestered by reactive iron on the Eurasian Arctic Shelf. Geophys Res Lett, 42: 8122–8130
Schubert C J, Stein R. 1996. Deposition of organic carbon in Arctic Ocean sediments: Terrigenous supply vs marine productivity. Org Geochem, 24: 421–436
Shi L, Dong H, Reguera G, Beyenal H, Lu A, Liu J, Yu H Q, Fredrickson J K. 2016. Extracellular electron transfer mechanisms between micro-organisms and minerals. Nat Rev Microbiol, 14: 651–662
Shields M R, Bianchi T S, Gélinas Y, Allison M A, Twilley R R. 2016. Enhanced terrestrial carbon preservation promoted by reactive iron in deltaic sediments. Geophys Res Lett, 43: 1149–1157
Sirois M, Couturier M, Barber A, Gélinas Y, Chaillou G. 2018. Interactions between iron and organic carbon in a sandy beach subterranean estuary. Mar Chem, 202: 86–96
Song S, Santos I R, Yu H, Wang F, Burnett W C, Bianchi T S, Dong J, Lian E, Zhao B, Mayer L, Yao Q, Yu Z, Xu B. 2022. A global assessment of the mixed layer in coastal sediments and implications for carbon storage. Nat Commun, 13: 4903
Sowers T D, Holden K L, Coward E K, Sparks D L. 2019. Dissolved organic matter sorption and molecular fractionation by naturally occurring bacteriogenic iron (oxyhydr)oxides. Environ Sci Technol, 53: 4295–4304
Suess E. 1980. Particulate organic carbon flux in the oceans—surface productivity and oxygen utilization. Nature, 288: 260–263
Sun C H, Zhu M X, Ma W W, Sun Z L, Zhang X R, Ding K Y, Liu S H. 2020. Examining bulk and iron-associated organic carbon through depth in margin sea sediments (China) under contrasting depositional settings: Chemical and NEXAFS spectral characterization. J Mar Syst, 207: 103344
Tagliabue A, Bowie A R, Boyd P W, Buck K N, Johnson K S, Saito M A. 2017. The integral role of iron in ocean biogeochemistry. Nature, 543: 51–59
Tétrault A, Gélinas Y. 2022. Preferential sorption of polysaccharides on mackinawite: A chemometrics approach. Geochim Cosmochim Acta, 337: 61–72
Tribovillard N, Bout-Roumazeilles V, Delattre M, Ventalon S, Bensadok A. 2022. Sedimentary pyrite as a trap oforganic matter: Preliminary results from large-framboid observation. Eur J Mineral, 34: 77–83
van der Zee C, Roberts D R, Rancourt D G, Slomp C P. 2003. Nanogoethite is the dominant reactive oxyhydroxide phase in lake and marine sediments. Geology, 31: 993–996
Vosteen P, Spiegel T, Gledhill M, Frank M, Zabel M, Scholz F. 2022. The fate of sedimentary reactive iron at the land-ocean interface: A case study from the Amazon Shelf. Geochem Geophys Geosyst, 23: e2022GC010543
Wagai R, Mayer L M. 2007. Sorptive stabilization oforganic matter in soils by hydrous iron oxides. Geochim Cosmochim Acta, 71: 25–35
Wang Y, Zhang Z, Han L, Sun K, Jin J, Yang Y, Yang Y, Hao Z, Liu J, Xing B. 2019. Preferential molecular fractionation of dissolved organic matter by iron minerals with different oxidation states. Chem Geol, 520: 69–76
Wang X C, Druffel E R M, Griffin S, Lee C, Kashgarian M. 1998. Radiocarbon studies of organic compound classes in plankton and sediment of the Northeastern Pacific Ocean. Geochim Cosmochim Acta, 62: 1365–1378
Weber K A, Achenbach L A, Coates J D. 2006. Microorganisms pumping iron: Anaerobic microbial iron oxidation and reduction. Nat Rev Microbiol, 4: 752–764
Weisseborn P K, Warren L J, Dunn J G. 1995. Selective flocculation of ultrafine iron ore. 1. Mechanism of adsorption of starch onto hematite. Colloids Surfs A-Physicochem Eng Aspects, 99: 11–27
Wijsman J W M, Herman P M J, Middelburg J J, Soetaert K. 2002. A model for early diagenetic processes in sediments of the continental shelf of the Black Sea. Estuar Coast Shelf Sci, 54: 403–421
Xie S, Jiao N, Luo G, Li D, Wang P. 2022. Evolution of biotic carbon pumps in Earth history: Microbial roles as a carbon sink in oceans (in Chinese). Chin Sci Bull, 67: 1715–1726
Xu B, Bianchi T S, Allison M A, Dimova N T, Wang H, Zhang L, Diao S, Jiang X, Zhen Y, Yao P, Chen H, Yao Q, Dong W, Sui J, Yu Z. 2015. Using multi-radiotracer techniques to better understand sedimentary dynamics of reworked muds in the Changjiang River estuary and inner shelf of East China Sea. Mar Geol, 370: 76–86
Yang J, Wang J, Pan W, Regier T, Hu Y, Rumpel C, Bolan N, Sparks D. 2016. Retention mechanisms of citric acid in ternary kaolinite-Fe(III)-citrate acid systems using Fe K-edge EXAFS and L3, 2-edge XANES spectroscopy. Sci Rep, 6: 26127
Yao P, Zhao B, Bianchi T S, Guo Z, Zhao M, Li D, Pan H, Wang J, Zhang T, Yu Z. 2014. Remineralization of sedimentary organic carbon in mud deposits of the Changjiang Estuary and adjacent shelf: Implications for carbon preservation and authigenic mineral formation. Cont ShelfRes, 91: 1–11
Zabel M, Horst D S. 2000. Marine Geochemistry. 2nd ed. Berlin: Springer. 271–300
Zhai X, Zhou Y. 2014. Modern Methods of Analyzing Structure of Materials. 2nd ed. Hefei: Press of University of Science and Technology of China. 2–55
Zhang L, Chen M, Zheng Y, Wang J, Xiao X, Chen X, Hu C, Shen J, Liu J, Tang K, Xu D, Shi Q, Ning X, Thomas H, Qin W, Zhao M, Jiao N, Zhang Y. 2023. Microbially driven fate of terrigenous particulate organic matter in oceans. Limnol Oceanogr, 68:148–164
Zhang S, Wang H, Wang X, Ye Y. 2022. Mesoproterozoic marine biological carbon pump: Source, degradation, and enrichment of organic matter (in Chinese). Chin Sci Bull, 67: 1624–1643
Zhao B, Yao P, Bianchi T S, Shields M R, Cui X Q, Zhang X W, Huang X Y, Schröeder C, Zhao J, Yu Z G. 2018. The role of reactive iron in the preservation of terrestrial organic carbon in estuarine sediments. J Geophys Res-Biogeosci, 123: 3556–3569
Zhao B, Yao P, Bianchi T S, Wang X, Shields M R, Schröder C, Yu Z. 2023. Preferential preservation ofpre-aged terrestrial organic carbon by reactive iron in estuarine particles and coastal sediments of a large river-dominated estuary. Geochim Cosmochim Acta, 345: 34–49
Zhao B, Yao P, Yu Z. 2016. The effect of OC-iron oxide association on the preservation of sedimentary OC in marine environments (in Chinese). Adv Earth Sci, 31:1151–1158
Zhao M, Mills B J W, Homoky W B, Peacock C L. 2023. Oxygenation of the Earth aided by mineral-organic carbon preservation. Nat Geosci, 16: 262–267
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This work was supported by the Fundamental Research Funds for the Central Universities (Grant No. 202241001), the Natural Nature Science Foundation of China (Grant Nos. 42076074, 42006041 & 42076034), and the Taishan Scholar Program (Grant No. TSQN20182117).
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Hu, L., Ji, Y., Zhao, B. et al. The effect of iron on the preservation of organic carbon in marine sediments and its implications for carbon sequestration. Sci. China Earth Sci. 66, 1946–1959 (2023). https://doi.org/10.1007/s11430-023-1139-9
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DOI: https://doi.org/10.1007/s11430-023-1139-9