Transport of Heat by Hydrothermal Circulation in a Young Rift Setting: Observations From the Auka and JaichMaa Ja'ag' Vent Field in the Pescadero Basin, Southern Gulf of California

Negrete-Aranda, R.; Neumann, Florian; Contreras, Juan; Harris, Robert N.; Spelz, Ronald M.; Zierenberg, Robert A.; Caress, David W.

doi:10.1029/2021jb022300

Cited by 6 publications

(1 citation statement)

References 60 publications

(112 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hydrothermal fluids from the lower crust and upper mantle usually carry multiple elements (e.g., Ca, Mg, Cu, Hg, P, S) that exist as cations and onions (German et al, 2006;Sherman et al, 2009). During the upward movement along faults and the water circulation in the basin (Yu et al, 2019;Negrete-Aranda et al, 2021), with the changes of temperature, pressure, pH, salinity and redox conditions, hydrothermal fluids deposit carbonate, quartz, Ca-Mg-siderite, sulfate, and sulfide (Renaut et al, 2002;Lima and De Ros, 2019;Renard et al, 2019;Yang et al, 2020;Renaut et al, 2021). The controlling factors on organic matter enrichment are primary productivity (e.g., plankton and bacteria), preservation of organic matter, and dilution and/or silicification effects of terrigenous detrital input (Tourtelot, 1979;Rimmer et al, 2004;Li et al, 2017a;Zou et al, 2019;Jiang et al, 2020;Xie et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Episodic hydrothermal activities impact on organic matter enrichment in the post-collision rift basin of Permian Lucaogou Formation, southern Junggar Basin, NW China

Jiao

Zhou

et al. 2023

Front. Earth Sci.

View full text Add to dashboard Cite

The factors controlling the organic matter accumulation in the organic-rich shale of the Lucaogou Formation in the southern Junggar Basin, remain controversial. To more explicitly reveal the hydrothermal events and its mechanism on the organic matter enrichment, we performed mineralogy and geochemistry methods on dolomite and black shale samples from Well FK-1 in Fukang Sag. The high (Fe + Mn)/Ti ratios, the enrichment of Ca, Mg, Fe, Mn, and REY, and multiple hydrothermal minerals (e.g., ankerite, dolomite, zeolite, authigenic albite, and microcline) suggest five episodes of hydrothermal events. In addition, the low-to-high-varied Sr/Ba, V/(V + Ni) (Al + Fe)/(Ca + Mg), and Sr/Cu ratios, as well as the dolomite formation all well indicate a brackish-saline, suboxic-anoxic, shallow to deep water condition under a warm-humid to hot-arid climate with rhythmic sedimentation. The fluctuated total organic carbon content (up to 12.16 wt%) suggest the periodic organic matter accumulation. Three patterns of organic matter enrichment occurred during the rift-drift transition of the southern Junggar Basin, productivity and preservation played distinguishing roles in different intervals. Productivity periodically fluctuated because of the episodic hydrothermal events and warm-humid climate changes. Preservation was triggered by the saline, anoxic, and well-stratified water setting under the relatively hot-arid climate, which became progressively favorable in the gradually stabilized basin.

show abstract

Section: Introductionmentioning

confidence: 99%

Episodic hydrothermal activities impact on organic matter enrichment in the post-collision rift basin of Permian Lucaogou Formation, southern Junggar Basin, NW China

Jiao

Zhou

et al. 2023

Front. Earth Sci.

View full text Add to dashboard Cite

show abstract

Strain localization instabilities and the genesis of multiple axes of seafloor spreading in the Carmen basin, southern Gulf of California

Julià-Miralles,

Yarbuh,

Spelz

et al. 2024

Int J Earth Sci (Geol Rundsch)

Self Cite

View full text Add to dashboard Cite

We present new insight into the tectonic evolution of the Carmen basin (CB) in the southern Gulf of California (GC) from high-resolution bathymetry and two-dimensional seismic reflection data. Our goal is to document the seafloor morphology and sub-surface acoustic characteristics to understand the structure and crustal lithology across the CB. We identify three sub-basins with distinct geometries and evolutionary histories, with basement structures displaying a strong affinity with highly reflective, sigmoidal-shaped layers and the emplacement of high-amplitude tabular material underlying sediments with varying stratigraphic thicknesses. From the extent of new oceanic crust accreted along the CB, we estimate the age of the basin using a seafloor spreading rate of 52 mm/year, which is the average velocity of the relative plate motion between the Baja California microplate and the North American plate, as documented by previous authors. The southern and central sub-basins of the CB are mainly abandoned, while the northern one is currently the locus of seafloor spreading. This is evidenced by the juxtaposition of oceanic crust younger than ~ 1.9 Ma against older oceanic crust correlating in age with the adjacent Guaymas and Farallon basins to the northeast and southwest, respectively. We propose that mantle upwelling beneath the CB is a northward continuation of the East Pacific Rise, resulting in a fast-evolving system with sharp variations in strain localization within the seafloor spreading centers of the CB. Graphical Abstract

show abstract

Update and Review of Continental Conductive Surface Heat Flow Measurements in México: An Analysis of Deep Boreholes

2023

View full text Add to dashboard Cite

Transport of Heat by Hydrothermal Circulation in a Young Rift Setting: Observations From the Auka and JaichMaa Ja'ag' Vent Field in the Pescadero Basin, Southern Gulf of California

Cited by 6 publications

References 60 publications

Episodic hydrothermal activities impact on organic matter enrichment in the post-collision rift basin of Permian Lucaogou Formation, southern Junggar Basin, NW China

Episodic hydrothermal activities impact on organic matter enrichment in the post-collision rift basin of Permian Lucaogou Formation, southern Junggar Basin, NW China

Strain localization instabilities and the genesis of multiple axes of seafloor spreading in the Carmen basin, southern Gulf of California

Update and Review of Continental Conductive Surface Heat Flow Measurements in México: An Analysis of Deep Boreholes

Contact Info

Product

Resources

About