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Matthew T. Hurtgen
Northwestern University
GeologyGeochemistrySulfateSulfurBiogeochemical cycle
52Publications
20H-index
1,614Citations
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Publications 52
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#1Young Ji Joo (NU: Northwestern University)H-Index: 2
#2Bradley B. Sageman (NU: Northwestern University)H-Index: 37
Last. Matthew T. Hurtgen (NU: Northwestern University)H-Index: 20
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Abstract The middle Cretaceous was a period characterized by elevated sea-floor spreading rates, enhanced volcanism, high atmospheric CO2 levels, warming temperatures, and the peak eustatic highstand of the Mesozoic. Two well-known perturbations in the global carbon cycle mark this interval – the Cenomanian-Turonian Oceanic Anoxic Event 2 (OAE2) and the Mid-Cenomanian Event (MCE). Although studies during the past two decades have arrived at a consensus that the Caribbean Large Igneous Province (...
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#1Katherine N. Braun (NU: Northwestern University)
#2Ethan J. Theuerkauf (MSU: Michigan State University)H-Index: 8
Last. Daniel E. Horton (NU: Northwestern University)H-Index: 14
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Soil organic carbon (SOC) is an important component of freshwater wetlands that may be used to quantify ecosystem services and prioritize conservation efforts. Measuring SOC directly via elemental analysis is often time and cost-prohibitive. Loss-on-ignition (LOI) is a rapid and low-cost method for determining soil organic matter; however, LOI data must be converted to SOC data using a soil type-specific regression model and no models currently exist for freshwater coastal wetlands. To address t...
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#1Benjamin J. Linzmeier (NU: Northwestern University)H-Index: 3
#2Andrew D. Jacobson (NU: Northwestern University)H-Index: 21
Last. Jiuyuan Wang (NU: Northwestern University)
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1 CitationsSource
#1Jiuyuan Wang (NU: Northwestern University)
#2Andrew D. Jacobson (NU: Northwestern University)H-Index: 21
Last. Shu-zhong Shen (NU: Nanjing University)H-Index: 32
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Abstract We report high-resolution, high-precision δ44/40Ca, δ88/86Sr, and 87Sr/86Sr records spanning the Permian-Triassic boundary (PTB) from the Meishan and Dajiang carbonate successions in south China. The goal of the study was to understand the behavior of Ca and Sr isotopes during a time period in Earth history characterized by severe biological and environmental perturbations, including a major mass extinction, flood basalt volcanism, ocean acidification, and sea level fluctuations. Dajian...
1 CitationsSource
Last. Neil H. LandmanH-Index: 28
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#3Andrew D. JacobsonH-Index: 21
Last. Neil H. LandmanH-Index: 28
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#1Brian Kristall (NU: Northwestern University)H-Index: 2
#2Andrew D. Jacobson (NU: Northwestern University)H-Index: 21
Last. Matthew T. Hurtgen (NU: Northwestern University)H-Index: 20
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Abstract Coupled modeling of biogeochemical cycles leads to improved constraints on elemental fluxes and helps to identify mechanisms that drive secular variations in isotopic records. Here, we develop a coupled strontium-sulfur isotope mass-balance model to examine the Early Cretaceous marine sulfate (δ34Ssw) and strontium (87Sr/86Sr) isotope records. We also present an expanded marine barite S isotope record and pyrite S isotope record for the Early Cretaceous with updated age models in line w...
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#1Jennifer V. Mills (NU: Northwestern University)H-Index: 3
#2Maya L. Gomes (NU: Northwestern University)H-Index: 4
Last. Matthew T. Hurtgen (NU: Northwestern University)H-Index: 20
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Early Cretaceous (145–100 Ma) rocks record a ∼5‰ negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic, and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, w...
4 CitationsSource
#1Brian Kristall (NU: Northwestern University)H-Index: 2
#2Andrew D. Jacobson (NU: Northwestern University)H-Index: 21
Last. Matthew T. Hurtgen (NU: Northwestern University)H-Index: 20
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Abstract While uniformitarianism underlies many aspects of the Earth sciences, modeling geochemical cycles throughout Earth history requires critically assessing the reliability and constancy of projecting modern fluxes and their isotope ratios into deep geologic time. In this study, we develop an iterative technique for modeling the radiogenic strontium isotope composition (R87 = 87Sr/86Sr) of seawater (sw) during the Phanerozoic utilizing as a constraint the composite record of McArthur et al....
7 CitationsSource
#1Matthew T. HurtgenH-Index: 20
Last. Bradley B. SagemanH-Index: 37
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