John I. Hedges
#112,344
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Chemical oceanographer
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John I. Hedgesbiology Degrees
Biology
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Oceanography
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#79
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Chemistry Biology
John I. Hedges's Degrees
- Masters Marine Chemistry University of California, Santa Cruz
- Bachelors Chemistry University of California, Santa Cruz
Why Is John I. Hedges Influential?
(Suggest an Edit or Addition)John I. Hedges's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- Sedimentary organic matter preservation: an assessment and speculative synthesis (1995) (2192)
- Carbon and nitrogen determinations of carbonate‐containing solids1 (1984) (1148)
- A new, mechanistic model for organic carbon fluxes in the ocean based on the quantitative association of POC with ballast minerals (2001) (950)
- Bulk Chemical Characteristics of Dissolved Organic Matter in the Ocean (1992) (883)
- Global biogeochemical cycles: progress and problems (1992) (883)
- Characterization of lignin by gas capillary chromatography of cupric oxide oxidation products (1982) (856)
- Compositions and fluxes of particulate organic material in the Amazon River1 (1986) (800)
- The characterization of plant tissues by their lignin oxidation products (1979) (790)
- Influence of oxygen exposure time on organic carbon preservation in continental margin sediments (1998) (744)
- Sorptive preservation of labile organic matter in marine sediments (1994) (735)
- The molecularly-uncharacterized component of nonliving organic matter in natural environments (2000) (676)
- Comparative organic geochemistries of soils and marine sediments (1997) (655)
- Characterization of a major refractory component of marine dissolved organic matter (2006) (639)
- Processes controlling the organic carbon content of open ocean sediments (1988) (628)
- Land-derived organic matter in surface sediments from the Gulf of Mexico (1976) (558)
- Young organic matter as a source of carbon dioxide outgassing from Amazonian rivers (2005) (533)
- Mineralogical and textural controls on the organic composition of coastal marine sediments: Hydrodynamic separation using SPLITT-fractionation (1994) (483)
- Molecular indicators of diagenetic status in marine organic matter (1997) (483)
- Effects of fungal degradation on the CuO oxidation products of lignin: A controlled laboratory study (1988) (440)
- Origins and processing of organic matter in the Amazon River as indicated by carbohydrates and amino acids (1994) (433)
- Dissolved humic substances of the Amazon River system1 (1986) (419)
- Biogeochemistry of carbon in the Amazon River (1990) (409)
- The lignin component of humic substances: Distribution among soil and sedimentary humic, fulvic, and base-insoluble fractions (1984) (384)
- Sources and reactivities of amino acids in a coastal marine environment (1992) (382)
- Biochemical indicators of diagenetic alteration in natural organic matter mixtures (1994) (380)
- Loss of organic matter from riverine particles in deltas (1997) (373)
- Degradation of carbohydrates and lignins in buried woods (1985) (358)
- Cycling and composition of organic matter in terrestrial and marine ecosystems (2004) (355)
- Evidence for non-selective preservation of organic matter in sinking marine particles (2001) (327)
- Carbohydrate sources in a coastal marine environment (1984) (311)
- Sedimentary organic matter preservation : A test for selective degradation under oxic conditions (1999) (310)
- The lignin geochemistry of marine sediments from the southern Washington coast (1979) (306)
- Organic matter sources to the water column and surficial sediments of a marine bay (1988) (296)
- The biochemical and elemental compositions of marine plankton: A NMR perspective (2002) (293)
- Chemical composition of dissolved organic nitrogen in the ocean (1997) (291)
- Lignin dimers: Structures, distribution, and potential geochemical applications (1992) (283)
- Molecular evidence for a terrestrial component of organic matter dissolved in ocean water (1986) (278)
- The effect of grain size and surface area on organic matter, lignin and carbohydrate concentration, and molecular compositions in Peru Margin sediments (1997) (265)
- Major biochemical composition of dissolved high molecular weight organic matter in seawater (1996) (242)
- Reburial of fossil organic carbon in marine sediments (2004) (241)
- Sources of particulate organic matter in rivers from the continental USA: Lignin phenol and stable carbon isotope compositions. (2000) (241)
- Sources of sedimentary humic substances: vascular plant debris (1985) (232)
- An improved thermal oxidation method for the quantification of soot/graphitic black carbon in sediments and soils. (2001) (225)
- Compositions and transport of lipid biomarkers through the water column and surficial sediments of the equatorial Pacific Ocean (1997) (219)
- Organic matter in Bolivian tributaries of the Amazon River: A comparison to the lower mainstream (2000) (213)
- Amino acid adsorption by clay minerals in distilled water (1987) (212)
- Composition and flux of particulate amino acids and chloropigments in equatorial Pacific seawater and sediments (2000) (210)
- Sorptive fractionation of dissolved organic nitrogen and amino acids onto fine sediments within the Amazon Basin (2001) (209)
- Organic geochemical perspectives on estuarine processes: sorption reactions and consequences (1999) (207)
- Organic Carbon-14 in the Amazon River System (1986) (202)
- Fungal degradation of wood lignins; geochemical perspectives from CuO-derived phenolic dimers and monomers (1993) (194)
- Tannin diagenesis in mangrove leaves from a tropical estuary: a novel molecular approach (2001) (193)
- BIOCHEMICAL DISTRIBUTIONS (AMINO ACIDS, NEUTRAL SUGARS, AND LIGNIN PHENOLS) AMONG SIZE-CLASSES OF MODERN MARINE SEDIMENTS FROM THE WASHINGTON COAST (1998) (193)
- Fluxes and reactivities of organic matter in a coastal marine bay (1988) (190)
- Elemental and major biochemical changes across an oxidation front in a relict turbidite: An oxygen effect (1995) (186)
- Early Diagenesis: Consequences for Applications of Molecular Biomarkers (1993) (184)
- A Critical Evaluation of Interlaboratory Data on Total, Elemental, and Isotopic Carbon in the Carbonaceous Particle Reference Material, NIST SRM 1649a (2002) (182)
- The formation and clay mineral reactions of melanoidins (1978) (181)
- Effectiveness of various treatments in retarding microbial activity in sediment trap material and their effects on the collection of swimmers (1992) (179)
- Carbon-13 Depletion in a Hydrothermal Vent Mussel: Suggestion of a Chemosynthetic Food Source (1979) (173)
- Dissolved Organic Carbon in Ridge-Axis and Ridge-Flank Hydrothermal Systems (2006) (171)
- Carbon cycling in the Amazon River: Implications from the 13C compositions of particles and solutes (1992) (158)
- Sources and relative reactivities of amino acids, neutral sugars, and lignin in an intermittently anoxic marine environment (1992) (156)
- The role of biominerals in the sinking flux and preservation of amino acids in the Southern Ocean along 170°W (2003) (156)
- A comparison of dissolved humic substances from seawater with Amazon River counterparts by 13C-NMR spectrometry (1992) (155)
- Lignin geochemistry of a Late Quaternary sediment core from Lake Washington (1982) (153)
- Particulate organic carbon fluxes: compilation of results from the 1995 US JGOFS Arabian Sea Process Study: By the Arabian Sea Carbon Flux Group (1998) (152)
- Early diagenesis of mangrove leaves in a tropical estuary: Molecular-level analyses of neutral sugars and lignin-derived phenols (1990) (151)
- Sources and reactivities of marine-derived organic matter in coastal sediments as determined by alkaline CuO oxidation (1995) (148)
- Hydrocarbon geochemistry of the Puget Sound region—I. Sedimentary acyclic hydrocarbons (1980) (146)
- Digestion and alteration of the biochemical constituents of a diatom (Thalassiosira weisflogii) ingested by an herbivorous zooplankton (Calanus pacificus) (1996) (146)
- Lignin Signature of Aquatic Humic Substances (1984) (145)
- The Measurement of Oceanic Particle Flux—Are "Swimmers" a Problem? (1988) (137)
- Potential applications of cutin-derived CuO reaction products for discriminating vascular plant sources in natural environments (1990) (135)
- Early diagenesis of mangrove leaves in a tropical estuary: Bulk chemical characterization using solid-state 13C NMR and elemental analyses (1990) (135)
- IMPROVED AMINO-ACID QUANTIFICATION IN ENVIRONMENTAL-SAMPLES - CHARGE-MATCHED RECOVERY STANDARDS AND REDUCED ANALYSIS TIME (1992) (132)
- Lipid biomarker fluxes in the Arabian Sea, with a comparison to the equatorial Pacific Ocean (2002) (132)
- Hydrocarbon geochemistry of the Puget Sound region—II. Sedimentary diterpenoid, steroid and triterpenoid hydrocarbons (1981) (127)
- Redfield ratios revisited: Removing the biasing effect of anthropogenic CO2 (2001) (126)
- Tannin signatures of barks, needles, leaves, cones, and wood at the molecular level (2004) (124)
- Photodegradation and photosensitization of mycosporine-like amino acids. (2005) (124)
- Organic matter in the Peruvian headwaters of the Amazon: Compositional evolution from the Andes to the lowland Amazon mainstem (2007) (123)
- DETERMINATION OF NEUTRAL SUGARS IN PLANKTON, SEDIMENTS, AND WOOD BY CAPILLARY GAS-CHROMATOGRAPHY OF EQUILIBRATED ISOMERIC MIXTURES (1984) (119)
- Demineralization of marine and freshwater sediments for CP/MAS 13C NMR analysis (2001) (118)
- Diagenesis of conifer needles in a coastal marine environment (1989) (116)
- The comparative geochemistries of lignins and carbohydrates in an anoxic fjord (1988) (116)
- Neutral carbohydrate geochemistry of particulate material in the central equatorial Pacific (1996) (115)
- A test of the accuracy of freshwater DOC measurements by high-temperature catalytic oxidation and UV-promoted persulfate oxidation (1993) (109)
- Chapter 1 – Why Dissolved Organics Matter (2002) (108)
- Chemical characterization of recent and buried woods by analytical pyrolysis: Comparison of pyrolysis data with 13C NMR and wet chemical data (1987) (107)
- The chemistry of archaeological wood. (1990) (104)
- Pollen and Lignin Records of Late Quaternary Vegetation, Lake Washington (1982) (104)
- Chemical Oceanography and the Marine Carbon Cycle (2008) (103)
- Cutin-derived CuO reaction products from purified cuticles and tree leaves (1990) (101)
- The diagenetic behavior of cutin acids in buried conifer needles and sediments from a coastal marine environment (1990) (97)
- 6.11 – Sediment Diagenesis and Benthic Flux (2003) (97)
- Black fungal colonies as units of survival: hyphal mycosporines synthesized by rock-dwelling microcolonial fungi (2003) (95)
- Comparative analyses of DOC and DON in natural waters (1993) (95)
- The role of anoxia in organic matter preservation in coastal sediments: relative stabilities of the major biochemicals under oxic and anoxic depositional conditions (1992) (92)
- Sources and distributions of sedimentary organic matter in the Columbia River drainage basin, Washington and Oregon1 (1984) (87)
- Bulk chemical and spectroscopic properties of marine and terrestrial humic acids, melanoidins and catechol-based synthetic polymers (1983) (87)
- Sorption of organic matter to mineral surfaces and the preservation of organic matter in coastal marine sediments (1993) (86)
- Amino Acid Carbon Isotopic Fractionation Patterns in Oceanic Dissolved Organic Matter: an Unaltered Photoautotrophic Source for Dissolved Organic Nitrogen in the Ocean? (2004) (85)
- Analysis of mycosporine-like amino acids in plankton by liquid chromatography electrospray ionization mass spectrometry (2002) (81)
- Pollen in marine sediments as an indicator of oxidation of organic matter (1994) (80)
- The chemical composition of dissolved organic matter in seawater (1993) (78)
- Organic Carbon Composition of Marine Sediments: Effect of Oxygen Exposure on Oil Generation Potential (2001) (78)
- Solid-state 13C NMR analysis of size and density fractions of marine sediments: Insight into organic carbon sources and preservation mechanisms (2006) (78)
- Mycosporine-like amino acids (MAAs) in phytoplankton, a herbivorous pteropod (Limacinahelicina), and its pteropod predator (Clioneantarctica) in McMurdo Bay, Antarctica (2001) (77)
- PEDOLOGICAL, ISOTOPIC, AND GEOCHEMICAL INVESTIGATIONS OF THE SOILS AT THE BOREAL FOREST AND ALPINE TUNDRA TRANSITION IN NORTHERN ALASKA (1981) (74)
- Lignin biomarkers and pollen in postglacial sediments of an Alaskan lake (1999) (67)
- The association of organic molecules with clay minerals in aqueous solutions (1977) (65)
- Resistance of hardwood vessels to degradation by white rot Basidiomycetes (1988) (61)
- RIVERINE ORGANIC MATTER COMPOSITION AS A FUNCTION OF LAND USE CHANGES, SOUTHWEST AMAZON (2004) (58)
- Electrospray ionization tandem mass spectrometric and electron impact mass spectrometric characterization of mycosporine-like amino acids. (2003) (57)
- Sources and distribution of CuO-derived benzene carboxylic acids in soils and sediments (2007) (55)
- A critical evaluation of inter-laboratory data on total, elemental and isotopic carbon in the carbonaceous particle reference material (2002) (53)
- Simultaneous determination of uronic acids and aldoses in plankton, plant tissues, and sediment by capillary gas chromatography of N-hexylaldonamide and alditol acetates (1988) (53)
- Particulate carbon and nitrogen fluxes and compositions in the central equatorial Pacific (2001) (52)
- Soft-Rot Fungal Degradation of Lignin in 2700 Year Old Archaeological Woods (1995) (52)
- Organic matter in sea water (1987) (50)
- Sedimentary organic matter preservation: an assessment and speculative synthesis: Authors' closing comments (1995) (50)
- Physical separation of combustion and rock sources of graphitic black carbon in sediments (2004) (50)
- Measurement of dissolved organic carbon and nitrogen in natural waters: Workshop report (1993) (49)
- Marine biopolymer self-assembly: implications for carbon cycling in the ocean. (2008) (49)
- Lignin phenols used to infer organic matter sources to Sepetiba Bay – RJ, Brasil (2010) (49)
- Effects of poisons and preservatives on the composition of organic matter in a sediment trap experiment (1993) (48)
- A comparison of lignin and stable carbon isotope compositions in quaternary marine sediments (1982) (43)
- A method to measure the isotopic (13C) composition of dissolved organic carbon using a high temperature combustion instrument (2007) (30)
- Effects of poisons and preservatives on the fluxes and elemental compositions of sediment trap materials (1993) (30)
- Dissolved organic carbon measurement using a modified high-temperature combustion analyzer (2003) (29)
- Distributions of uronic acids and O-methyl sugars in sinking and sedimentary particles in two coastal marine environments (1999) (28)
- Sedimentary Organic Matter Preservation and Atmospheric O2 Regulation (2002) (27)
- Organic carbon and nitrogen geochemistry of Black Sea surface sediments from stations spanning the oxic:anoxic boundary (1991) (26)
- Pre-LBA Carbon in the Amazon River Experiment (CAMREX) Data (2009) (22)
- 33. RELATIONSHIPS BETWEEN ORGANIC CARBON PRESERVATION AND MINERAL SURFACE AREA IN AMAZON FAN SEDIMENTS (HOLES 932A AND 942A) 1 (1997) (22)
- Fluxes of Major Biochemicals in the Equatorial Pacific Ocean (2000) (21)
- CuO-oxidation products, acid hydrolyzable monosaccharides and amino acids of humic substances occurring in a salt marsh estuary (1992) (18)
- Sedimentary diagenesis: organic perspectives with inorganic overlays (1993) (18)
- 34. EXTENTS AND IMPLICATIONS OF ORGANIC MATTER ALTERATION AT OXIDATION FRONTS IN TURBIDITES FROM THE MADEIRA ABYSSAL PLAIN 1 (1998) (15)
- RELATIONSHIPS BETWEEN ORGANIC CARBON PRESERVATION AND MINERAL SURFACE AREA IN AMAZON FAN SEDIMENTS ( HOLES 932 A AND 942 A ) (1997) (14)
- A comparison of organic matter sources, diagenesis and preservation in oxic and anoxic coastal sites (1993) (13)
- Comments from the editors on the suzuki statement (1993) (13)
- Chemical Oceanography and the Marine Carbon Cycle: Introduction to chemical oceanography (2008) (12)
- EXTENTS AND IMPLICATIONS OF ORGANIC MATTER ALTERATION AT OXIDATION FRONTS IN TURBIDITES FROM THE MADEIRA ABYSSAL PLAIN (1998) (11)
- Variable retention of diatoms on screens during size separations (1999) (10)
- Organic Geochemistry of Natural Waters: E. M. Thurman. Martinus Nijhoff/Dr. W. Junk Publishers, 1985, 497 p., $39.50 (1986) (9)
- Analysis of Polycerate Mutants Reveals the Evolutionary Co-option of HOXD1 for Horn Patterning in Bovidae (2021) (9)
- Seawater carbon measurement (1992) (9)
- Chemical Oceanography and the Marine Carbon Cycle: Stable and radioactive isotopes (2008) (6)
- Chemical Oceanography and the Marine Carbon Cycle: Carbonate Chemistry (2008) (6)
- A multichambered apparatus for HF solvolysis experiments: reaction of cellulose HF solvolysis products with acetic acid and acetic anhydride (1995) (4)
- Lignin, Cutin, Amino Acid and Carbohydrate Analyses of Marine Particulate Organic Matter (2013) (4)
- “The diagenetic behavior of cutin acids in buried conifer needles and sediments from a coastal marine environment”: M. A. Goñi and J. I. Hedges (1990) Geochim. Cosmochim. Acta54, 3083–3093 (1991) (3)
- Chemical Oceanography and the Marine Carbon Cycle: Life processes in the ocean (2008) (3)
- Geochemistry of Tannin: Methods and Applications (1999) (3)
- Chemical Oceanography and the Marine Carbon Cycle: Paleoceanography and paleoclimatology (2008) (2)
- A Test of the Melanoidin Hypothesis: ABSTRACT (1980) (2)
- Acceptance of the 2000 Alfred E. Treibs award (2001) (2)
- The Changing Carbon Cycle: A Terrestrial Focus Report of the Workshop on the Terrestrial Carbon Cycle (2001) (1)
- Oceanography background: dissolved chemicals, circulation and biology in the sea (2008) (1)
- A one-pot procedure for the quantitative conversion of glycosides into acetylated glycosyl fluorides (1996) (1)
- Chemical Oceanography and the Marine Carbon Cycle: Chemical reactions in marine sediments (2008) (1)
- Key problems in the organic chemistry of marine waters and sediments (1988) (1)
- Molecular-level characterization of marine-derived sedimentary organic matter by alkaline CuO oxidation: sources and reactivities of organic matter from Skan Bay (Alaska) sediments (1993) (1)
- A Critical Evaluation of Interlaboratory Data on Total , Elemental , and Isotopic Carbon in the Carbonaceous Particle Reference Material , NIST SRM 1649 a Volume 107 Number 3 May – June 2002 (2019) (1)
- The global carbon cycle : interactions between the atmosphere and ocean 11 (1)
- The Use of Liquid Chromatography–Mass Spectrometry (LC–MS) in the Identification and Characterization of Mycosporine‐Like Amino Acids (MAAS) (2002) (1)
- Chemical Oceanography and the Marine Carbon Cycle: Thermodynamics background (2008) (1)
- Book reviewMarine Organic Chemistry, by E. K. Duursma and R. Dawson, editors, Elsevier Scientific Publishing Company, 521 pp., $105.00. (1981) (0)
- Advances in organic geochemistry 1981: edited by M. Bjorøy et al., John Wiley & Sons, 1983, 846 pp., £90.00. (1984) (0)
- matter in sinking marine particles (2001) (0)
- Organic matter alteration at active and relict sedimentary oxidation fronts (1996) (0)
- Chemical Oceanography and the Marine Carbon Cycle: The global carbon cycle: interactions between the atmosphere and ocean (2008) (0)
- LBA-ECO CD-06 Isotopic Composition of Carbon Fractions, Amazon Basin River Water (2012) (0)
- Recycled Graphitic Carbon: Presence and Distribution off the Washington Coast (2002) (0)
- Chemical Oceanography and the Marine Carbon Cycle: Gases and air–water exchange (2008) (0)
- Does anoxia affect organic matter preservation Diagenesis and burial of the major biochemicals under oxic and anoxic depositional conditions (1992) (0)
- Analysis of Polycerate Mutants Reveals the Evolutionary Co-option of HOXD1 to Determine the Number and Topology of Horns in Bovidae (2020) (0)
- Chemical Oceanography and the Marine Carbon Cycle: Geochemical mass balance: dissolved chemical inflow and outflow from the ocean (2008) (0)
- A Test for Oxygen-Sensitive Organic Matter in Modern Sediments off the Washington Coast (1998) (0)
- Introduction to chemical oceanography (2008) (0)
- Elemental and major biochemical changes across oxidation fronts in N. E. Atlantic sediments (1992) (0)
- Chemical Oceanography and the Marine Carbon Cycle: Molecular diffusion and reaction rates (2008) (0)
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What Schools Are Affiliated With John I. Hedges?
John I. Hedges is affiliated with the following schools:
