Back to the roots: boron geochemistry of mud volcanoes and its implications for mobilization depth and global B cycling

Kopf, Achim J; Deyhle, Annette

doi:10.1016/s0009-2541(02)00221-8

Cited by 85 publications

(76 citation statements)

References 32 publications

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“…B distribution probably is the release of adsorbed B from clay minerals You et al 1996;Deyhle and Kopf 2002). Observations of sedimentary B contribution in pore waters have been reported at numerous convergent margins (You et al 1993a, b;Kopf et al 2000), as well as in laboratory experiments .…”

mentioning

confidence: 90%

“…The large Cl fluctuations can be attributed partly to fluids advection along the sandy horizons at the intervals between 0 and 140 mbsf, where porosity is relatively high (Salisbury et al 2002). Potential advective flows along high porosity layers or fractures zones have profound effects in pore water chemistry at convergent margins (Gieskes et al 1998;Deyhle and Kopf 2002). In addition, volcanic ash alteration or fresh water addition also affect Cl distribution (Gieskes 1975;Gieskes et al 1998).…”

Section: Major Constituents In Pore Watersmentioning

confidence: 99%

“…Under such pressure, some lattice waters in clays, as well as sedimentary exchangeable B were released simultaneously. The dehydration fluids are enriched in 10 B and subsequently were expelled and mixed with interstitial waters at shallow depth (Deyhle and Kopf 2002). The δ 11 B and 1/B correlation plots are presented in Fig.…”

Section: Factors Controlling Chemical Distribution In Pore Watersmentioning

confidence: 99%

“…Boron and B isotopes are unique tracers for studying hydro-geological processes in subduction zones because of boron's high mobility and associated large isotopic fractionation on Earth's surface environments (Palmer 1991;Ishikawa and Nakamura 1994;Rose et al 2001;Benton et al 2001;Kopf and Deyhle 2002). Other important B and δ 11 B applications are oceanic crust alteration Spivack et al 1990;Smith et al 1995), environmental pollution (Gabler and Bahr 1999), and pH reconstruction in past oceans (Spivack et al 1993;Sanyal et al 1997;Palmer and Pearson 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Other important B and δ 11 B applications are oceanic crust alteration Spivack et al 1990;Smith et al 1995), environmental pollution (Gabler and Bahr 1999), and pH reconstruction in past oceans (Spivack et al 1993;Sanyal et al 1997;Palmer and Pearson 2003). Recent studies also demonstrate that B and δ 11 B provide crucial information on the study of fluid origin and the degree of water/ sediment interaction at depth, as well as methane hydrates formation (Brumsack and Zuleger 1992;You et al 1993a;You et al 1995You et al 1996Kopf et al 2000;Deyhle and Kopf 2002).…”

Section: Introductionmentioning

confidence: 99%

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Geochemistry of Major Constituents, Boron and Boron Isotopes in Pore Waters from ODP Site 1202, Okinawa Trough

Huang¹,

You²,

Shen³

et al. 2005

Terr. Atmos. Ocean. Sci.

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mentioning

confidence: 90%

Section: Major Constituents In Pore Watersmentioning

confidence: 99%

Section: Factors Controlling Chemical Distribution In Pore Watersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Geochemistry of Major Constituents, Boron and Boron Isotopes in Pore Waters from ODP Site 1202, Okinawa Trough

Huang¹,

You²,

Shen³

et al. 2005

Terr. Atmos. Ocean. Sci.

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Composition and flux of explosive gas release at LUSI mud volcano (East Java, Indonesia)

Vanderkluysen

Burton

Clarke

et al. 2014

Geochem Geophys Geosyst

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The LUSI mud volcano has been erupting since May 2006 in the densely populated Sidoarjo regency (East Java, Indonesia), forcing the evacuation of 40,000 people and destroying industry, farmland, and over 10,000 homes. Mud extrusion rates of 180,000 m 3 d 21 were measured in the first few months of the eruption, decreasing to a loosely documented <20,000 m 3 d 21 in 2012. The last few years of activity have been characterized by periodic short-lived eruptive bursts. In May and October 2011, we documented this activity using high-resolution time-lapse photography, open-path FTIR, and thermal infrared imagery. Gases (98% water vapor, 1.5% carbon dioxide, 0.5% methane) were periodically released by the bursting of bubbles approximately 3 m in diameter which triggered mud fountains to $10 m and gas plumes to hundreds of meters above the vent. During periods of quiescence (1-3 min), no appreciable gas seepage occurred. We estimate that LUSI releases approximately 2300 t yr 21 of methane, 30,000 t yr 21 of CO 2 , and 800,000 t yr 21 of water vapor. Gas bubble nucleation depths are >4000 m for methane and approximately 600 m for carbon dioxide; however, the mass fractions of these gases are insufficient to explain the observed dynamics. Rather, the primary driver of the cyclic bubble-bursting activity is decompressional boiling of water, which initiates a few tens of meters below the surface, setting up slug flow in the upper conduit. Our measured gas flux and conceptual model lead to a corresponding upper-bound estimate for the mud-water mass flux of 10 5 m 3 d 21.

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Global boron cycle in the Anthropocene

Schlesinger

Vengosh

2016

Global Biogeochemical Cycles

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This paper presents a revised and updated synthesis of the biogeochemical cycle of boron at the Earth's surface, where the largest fluxes are associated with the injection of sea‐salt aerosols to the atmosphere (1.44 Tg B/yr), production and combustion of fossil fuels (1.2 Tg B/yr), atmospheric deposition (3.48 Tg B/yr), the mining of B ores (1.1 Tg B/yr), and the transport of dissolved and suspended matter in rivers (0.80 Tg B/yr). The new estimates show that anthropogenic mobilization of B from the continental crust exceeds the naturally occurring processes, resulting in substantial fluxes to the ocean and the hydrosphere. The anthropogenic component contributes 81% of the flux in rivers. The mean residence time for B in seawater supports the use of δ11B in marine carbonates as an index of changes in the pH of seawater over time periods of > 1 Ma.

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Back to the roots: boron geochemistry of mud volcanoes and its implications for mobilization depth and global B cycling

Cited by 85 publications

References 32 publications

Geochemistry of Major Constituents, Boron and Boron Isotopes in Pore Waters from ODP Site 1202, Okinawa Trough

Geochemistry of Major Constituents, Boron and Boron Isotopes in Pore Waters from ODP Site 1202, Okinawa Trough

Composition and flux of explosive gas release at LUSI mud volcano (East Java, Indonesia)

Global boron cycle in the Anthropocene

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