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Pushing the limits: Resolving paleoseawater signatures in nanoscale fluid inclusions by atom probe tomography

Journal Article · · Earth and Planetary Science Letters

New insight into the geochemistry of ancient environments can be gained through structural and chemical analyses of nanometer-scale features within minerals. Here, we present recent developments using atom probe tomography (APT) enabling direct visualization of nanoscale fluid inclusions trapped within pyrite (FeS2) and thereby chemical characterization of remnant seawater. Pyrite framboids (spherical clusters of nanocrystals) were sampled from the Middle Devonian Leicester Pyrite Member (New York). Scanning transmission electron microscopy shows low density regions distributed within the pyrite consistent with nanoscale pores (<4 nm in size). APT 3D visualization and compositional mapping reveals that the nanopores are filled with water. The inclusions appear to preserve the elemental signature of the water column in which the framboids formed, specifically seawater components including Na, K, Mg, and Ca. Mg/Ca ratios within the pyrite were generally measured to be within 0.6±0.2 – consistent with calcite-dominated seawater conditions existing in the Middle Devonian. Furthermore, this study demonstrates the potential for a novel approach to reconstruct paleoenvironmental conditions from coupled elemental and structural analyses of nanoscale fluid inclusions.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1897518
Alternate ID(s):
OSTI ID: 1960656
Report Number(s):
PNNL-SA-172856
Journal Information:
Earth and Planetary Science Letters, Journal Name: Earth and Planetary Science Letters Vol. 599; ISSN 0012-821X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (51)

A 2D and 3D nanostructural study of naturally deformed pyrite: assessing the links between trace element mobility and defect structures journal August 2019
Fluid inclusion induced hardening: nanoscale evidence from naturally deformed pyrite journal February 2021
The size distribution of framboidal pyrite in modern sediments: An indicator of redox conditions journal October 1996
Erosion on an anaerobic seafloor: Significance of reworked pyrite deposits from the Devonian of New York state journal December 1986
Chemical evolution of seawater during the Phanerozoic journal November 2002
The major-ion composition of silurian seawater journal August 2002
Transmission electron microscopy applied to fluid inclusion investigations journal January 2001
A review of focused ion beam milling techniques for TEM specimen preparation journal June 1999
How long does it take a pyrite framboid to form? journal May 2019
The formation mechanisms of sedimentary pyrite nodules determined by trace element and sulfur isotope microanalysis journal August 2019
Trace and major element incorporation into amorphous calcium carbonate (ACC) precipitated from seawater journal December 2020
Controls of temperature and mineral growth rate on Mg incorporation in aragonite journal January 2022
Time-resolved, defect-hosted, trace element mobility in deformed Witwatersrand pyrite journal January 2019
Applications of atom-probe tomography to the characterisation of solute behaviours journal July 2010
In situ site-specific specimen preparation for atom probe tomography journal February 2007
A method for site-specific and cryogenic specimen fabrication of liquid/solid interfaces for atom probe tomography journal November 2018
Analysis of nanoscale fluid inclusions in geomaterials by atom probe tomography: Experiments and numerical simulations journal November 2020
New Techniques for the Analysis of Fine-Scaled Clustering Phenomena within Atom Probe Tomography (APT) Data journal November 2007
Chromatic Aberrations in the Field Evaporation Behavior of Small Precipitates journal November 2008
Resolving Iron(II) Sorption and Oxidative Growth on Hematite (001) Using Atom Probe Tomography journal February 2018
Understanding Atom Probe Tomography of Oxide-Supported Metal Nanoparticles by Correlation with Atomic-Resolution Electron Microscopy and Field Evaporation Simulation journal March 2014
Cambrian sea water preserved as inclusions in marine low-magnesium calcite cement journal March 1993
Solving the Martian meteorite age conundrum using micro-baddeleyite and launch-generated zircon journal July 2013
Atomic-scale age resolution of planetary events journal May 2017
Determining the location and nearest neighbours of aluminium in zeolites with atom probe tomography journal July 2015
Hadean age for a post-magma-ocean zircon confirmed by atom-probe tomography journal February 2014
Solar wind contributions to Earth’s oceans journal November 2021
Atom probe tomography journal July 2021
Atom Probe Tomographic Mapping Directly Reveals the Atomic Distribution of Phosphorus in Resin Embedded Ferritin journal February 2016
Trajectory overlaps and local magnification in three-dimensional atom probe journal May 2000
Visualizing the iron atom exchange front in the Fe(II)-catalyzed recrystallization of goethite by atom probe tomography journal February 2019
Atom Probe Tomography: Development and Application to the Geosciences journal February 2020
Nanogeochronology of discordant zircon measured by atom probe microscopy of Pb-enriched dislocation loops journal September 2016
Enabling near-atomic–scale analysis of frozen water journal December 2020
Oscillations in Phanerozoic Seawater Chemistry: Evidence from Fluid Inclusions journal November 2001
Clues from Fluid Inclusions journal November 2001
Secular variation in seawater chemistry: An explanation for the coupled secular variation in the mineralogies of marine limestones and potash evaporites over the past 600 m.y. journal January 1996
Model of seawater composition for the Phanerozoic journal January 2005
Aragonite-calcite seas—Quantifying the gray area journal February 2015
Gold, arsenic, and copper zoning in pyrite: A record of fluid chemistry and growth kinetics journal May 2019
A new kind of invisible gold in pyrite hosted in deformation-related dislocations journal June 2021
Application of STEM characterization for investigating radiation effects in BCC Fe-based alloys journal April 2015
Accumulation and Preservation of Reworked Marine Pyrite Beneath an Oxygen-Rich Devonian Atmosphere: Constraints from Sulfur Isotopes and Framboid Textures journal August 2007
A Carbonaceous Sedimentary Source-Rock Model for Carlin-Type and Orogenic Gold Deposits journal May 2011
Gold and Trace Element Zonation in Pyrite Using a Laser Imaging Technique: Implications for the Timing of Gold in Orogenic and Carlin-Style Sediment-Hosted Deposits journal August 2009
Nanoscale gold clusters in arsenopyrite controlled by growth rate not concentration: Evidence from atom probe microscopy journal August 2016
Ground-truthing the pyrite trace element proxy in modern euxinic settings journal May 2022
Nanoscale "liquid" inclusions of As-Fe-S in arsenian pyrite journal February 2009
Comparison of metal enrichment in pyrite framboids from a metal-enriched and metal-poor estuary journal April 2014
Diffusion in Carbonates, Fluorite, Sulfide Minerals, and Diamond journal January 2010
A Nanoscale Investigation of Carlin-Type Gold Deposits: An Atom-Scale Elemental and Isotopic Perspective journal September 2019

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