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Journal Article

Effects of Hydrothermal Alteration and Mineralization on the Paleomagnetic Properties of Rocks from IODP Expedition 376 at Brothers Volcano Available to Purchase

F. Caratori Tontini, G. M. Turner, A. G. Reyes, F. Speranza, M. A. Tivey, C. Massiot, C.E.J. de Ronde, S. E. Humphris
Journal: Economic Geology
Published: 01 November 2023
Economic Geology (2023) 118 (7): 1605–1627.
DOI: https://doi.org/10.5382/econgeo.5008
... in NRM intensity (i.e., <1% of the initial NRM value). Fig. 1. Brothers volcano bathymetry (m) with locations of International Ocean Discovery Program (IODP) drill sites (black dots). Inset shows the tectonic setting and location of Brothers volcano in the Havre Trough, between the Colville...
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View PDF for article title, Effects of Hydrothermal Alteration and Mineralization on the Paleomagnetic Properties of Rocks from <span class="search-highlight">IODP</span> Expedition 376 at Brothers Volcano
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Journal Article

Time Series Studies and Drilling Results from IODP Expedition 376 to Brothers Volcano, New Zealand: Insights into Petrology, Hydrothermal Processes, and Mineralization—Introduction Available to Purchase

C.E.J. de Ronde, S. E. Humphris, T. W. Höfig
Journal: Economic Geology
Published: 01 November 2023
Economic Geology (2023) 118 (7): 1537–1547.
DOI: https://doi.org/10.5382/econgeo.5035
... with hydrothermal fluid upflow zones (Caratori Tontini et al., 2012) and incorporate the known vent fields (with the exception of the Lower Cone), including Upper Caldera, NW Caldera, West Caldera, SE Caldera (extinct), and Upper Cone. International Ocean Discovery Program (IODP) drill sites referred to throughout...
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View PDF for article title, Time Series Studies and Drilling Results from <span class="search-highlight">IODP</span> Expedition 376 to Brothers Volcano, New Zealand: Insights into Petrology, Hydrothermal Processes, and Mineralization—Introduction
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Image
A) Bathymetric map outlining the southern and central Kermadec region. Seismic profile M2 of RV Sonne cruise SO192/2 (Bassett et al., 2016) is shown by a yellow line. B) Close-up of the Brothers-Healy-Silent II area with structural lineaments illustrated by white dashed lines. Samples from the Brothers NE ridge (BNER; TAN1007 DR6) and the basin north of Brothers (TAN1213 DR47) are marked by purple dots. C) Close-up of Brothers volcano and the Brothers W ridge (BWR) with labeled International Ocean Discovery Program (IODP) drill sites (e.g., U1527).

A) Bathymetric map outlining the southern and central Kermadec region. Seis... Available to Purchase

Published: 01 November 2023
from the Brothers NE ridge (BNER; TAN1007 DR6) and the basin north of Brothers (TAN1213 DR47) are marked by purple dots. C) Close-up of Brothers volcano and the Brothers W ridge (BWR) with labeled International Ocean Discovery Program (IODP) drill sites (e.g., U1527).
Image
Map showing high-resolution (2 m) bathymetry of the caldera walls and resurgent cones at Brothers volcano—derived from the autonomous underwater vehicle ABE—overlain on 25-m resolution, ship-derived bathymetry for the caldera floor, upper caldera rim, and volcano flanks. The translucent areas depict zones of low magnetization intensity associated with hydrothermal fluid upflow zones (Caratori Tontini et al., 2012) and incorporate the known vent fields (with the exception of the Lower Cone), including Upper Caldera, NW Caldera, West Caldera, SE Caldera (extinct), and Upper Cone. International Ocean Discovery Program (IODP) drill sites referred to throughout the special issue include U1527, U1528, U1529, U1530, and U1531 with several holes drilled at each site (see Table 2). White box is the outline for the center of Figure 3. Transverse mercator projection, central meridian = 179°E.

Map showing high-resolution (2 m) bathymetry of the caldera walls and resur... Available to Purchase

Published: 01 November 2023
. International Ocean Discovery Program (IODP) drill sites referred to throughout the special issue include U1527, U1528, U1529, U1530, and U1531 with several holes drilled at each site (see Table 2 ). White box is the outline for the center of Figure 3 . Transverse mercator projection, central meridian = 179°E.
Journal Article

Depth Profiles of Re-Os Geochemistry in Drill Cores from Hole U1530A in Brothers Volcano Hydrothermal Field, Kermadec Arc: Mobilization and Extreme Enrichment of Os by Volcanic Gas Available to Purchase

Tatsuo Nozaki, Mizuki Ishida, Yutaro Takaya, Qing Chang, Jun-Ichi Kimura, Yasuhiro Kato
Journal: Economic Geology
Published: 01 November 2023
Economic Geology (2023) 118 (7): 1681–1697.
DOI: https://doi.org/10.5382/econgeo.4960
... , T. , Takaya , Y. , Ohta , J. , Chang , Q. , Kimura , J.-I. , Nakamura , K. , and Kato , Y. , 2022 , Re-Os geochemistry of hydrothermally altered dacitic rock: A case study of Site U1527, IODP Expedition 376 : Deep-Sea Research Part I , v. 180 , article 103687...
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View PDF for article title, Depth Profiles of Re-Os Geochemistry in Drill Cores from Hole U1530A in Brothers Volcano Hydrothermal Field, Kermadec Arc: Mobilization and Extreme Enrichment of Os by Volcanic Gas
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Journal Article

Boron and Oxygen Isotope Systematics of Two Hydrothermal Systems in Modern Back-Arc and Arc Crust (PACMANUS and Brothers Volcano, W-Pacific) Available to Purchase

Lucy E.M. Schlicht, Olivier Rouxel, Jeremy Deans, Stephen Fox, Yaron Katzir, Kouki Kitajima, Simone A. Kasemann, Anette Meixner, Wolfgang Bach
Journal: Economic Geology
Published: 01 November 2023
Economic Geology (2023) 118 (7): 1719–1739.
DOI: https://doi.org/10.5382/econgeo.4986
... site), and two were recovered during IODP drilling Expedition 376: one from Hole U1527A at the NW Caldera and one from Hole U1528D at the Upper Cone ( Table 2 ). We also investigated 76 altered rock samples from Brothers volcano that were recovered during IODP Expedition 376: 24 samples from Site U1527...
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View PDF for article title, Boron and Oxygen Isotope Systematics of Two Hydrothermal Systems in Modern Back-Arc and Arc Crust (PACMANUS and Brothers Volcano, W-Pacific)
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Journal Article

The Origin of Magmas and Metals at the Submarine Brothers Volcano, Kermadec Arc, New Zealand Available to Purchase

Philipp A. Brandl, Maxim Portnyagin, Heiko Zeppenfeld, Frank J. Tepley, III, Cornel E.J. de Ronde, Christian Timm, Folkmar Hauff, Dieter Garbe-Schönberg, Romain Bousquet
Journal: Economic Geology
Published: 01 November 2023
Economic Geology (2023) 118 (7): 1577–1604.
DOI: https://doi.org/10.5382/econgeo.4973
... from the Brothers NE ridge (BNER; TAN1007 DR6) and the basin north of Brothers (TAN1213 DR47) are marked by purple dots. C) Close-up of Brothers volcano and the Brothers W ridge (BWR) with labeled International Ocean Discovery Program (IODP) drill sites (e.g., U1527). ...
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Journal Article

Petrophysical Facies and Inferences on Permeability at Brothers Volcano, Kermadec Arc, Using Downhole Images and Petrophysical Data Open Access

Cécile Massiot, Iona McIntosh, Jeremy Deans, Sarah D. Milicich, Fabio Caratori Tontini, Cornel E. J. de Ronde, Ludmila Adam, Kannikha Kolandaivelu, Gilles Guerin
Journal: Economic Geology
Published: 01 November 2023
Economic Geology (2023) 118 (7): 1629–1655.
DOI: https://doi.org/10.5382/econgeo.4897
... of Hole U1530A ( de Ronde et al., 2019d ). Fig. 1. A) Detailed bathymetry of Brothers volcano and its environs (after Embley et al., 2012 ), and the location of sites drilled during IODP Expedition 376. Labels designate North fault (NF), South fault (SF), North rift zone (NRZ), Upper Cone (UC...
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View PDF for article title, Petrophysical Facies and Inferences on Permeability at Brothers Volcano, Kermadec Arc, Using Downhole Images and Petrophysical Data
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Journal Article

Hydrothermal Alteration Within the Brothers Submarine Arc Volcano, Kermadec Arc, New Zealand Available to Purchase

Andrew J. Martin, John W. Jamieson, Cornel E.J. de Ronde, Susan E. Humphris, Stephen Roberts, Christopher J. MacLeod, Yuanfeng Cai, Chao Zhang, Lucy E.M. Schlicht, Tatsuo Nozaki
Journal: Economic Geology
Published: 01 November 2023
Economic Geology (2023) 118 (7): 1657–1679.
DOI: https://doi.org/10.5382/econgeo.4962
... sea floor (mbsf) from both the Upper Cone (Site U5128) and NW Caldera sites (Site U1527 and U1530), drilled by the International Ocean Discovery Program. The dacitic to rhyolitic breccias that make up the volcano are variably altered to alteration mineral assemblages consisting of chlorite + quartz...
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View PDF for article title, Hydrothermal Alteration Within the Brothers Submarine Arc Volcano, Kermadec Arc, New Zealand
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Image
Alteration patterns, lithostratigraphy (after de Ronde et al., 2019e), and geochemical variations with depth at Brothers volcano. A) Cross section (see Fig. 2B) of Brothers volcano and distribution of alteration types based on shipboard observations and X-ray diffraction (XRD) analyses of International Ocean Discovery Program (IODP) Expedition 376, modified after de Ronde et al. (2019d). Boreholes were projected to the cross section. B-D) B concentrations and isotope compositions of altered rocks, Sites U1527, U1528, and U1530, respectively. The symbols are the same as in Figure 5; symbol colors match alteration type. The errors (2sd) of the B isotope compositions are smaller than the symbol sizes. The range of unaltered rock compositions is illustrated as a light gray vertical line, with the average in dark gray. Mineral abbreviations: anh = anhydrite, ba = barite, ccp = chalcopyrite, chl = chlorite, dsp = diaspore, ill = illite, mor = mordenite, natro = natroalunite, op-CT = opal-CT, plg = plagioclase, prl = pyrophyllite, px = pyroxene, py = pyrite, qtz = quartz, rt = rutile, sm = smectite, sph = sphalerite, zun = zunyite.

Alteration patterns, lithostratigraphy (after de Ronde et al., 2019e ), an... Available to Purchase

Published: 01 November 2023
) analyses of International Ocean Discovery Program (IODP) Expedition 376, modified after de Ronde et al. ( 2019d ). Boreholes were projected to the cross section. B-D) B concentrations and isotope compositions of altered rocks, Sites U1527, U1528, and U1530, respectively. The symbols are the same