24 papers · ranked by Valyu relevance
Rachel C Beaver, Josh D Neufeld
The terrestrial subsurface hosts microbial communities that, collectively, are predicted to comprise as many microbial cells as global surface soils. Although initially thought to be associated with deposited organic matter, deep subsurface microbial communities are supported by chemolithoautotrophic primary…
D’Arcy R. Meyer-Dombard, Judy Malas
The subsurface is one of the last remaining ‘uncharted territories’ of Earth and is now accepted as a biosphere in its own right, at least as critical to Earth systems as the surface biosphere. The terrestrial deep biosphere is connected through a thin veneer of Earth’s crust to the surface biosphere, and many…
Magdalena R. Osburn, Caitlin P. Casar, Brittany Kruger, Lily Momper + 2 more
The deep subsurface contains a vast reservoir of microbial life. While recent studies have revealed critical details about this biosphere including the sheer diversity of microbial taxa and their metabolic potential, long-term monitoring of deep subsurface microbial populations is rare, thus limiting our understanding…
Thomas Aüllo, Anthony Ranchou-Peyruse, Bernard Ollivier, Michel Magot
'Michel Magot'] Gram-positive spore-forming sulfate reducers and particularly members of the genus Desulfotomaculum are commonly found in the subsurface biosphere by culture based and molecular approaches. Due to their metabolic versatility and their ability to persist as endospores. Desulfotomaculum spp. are…
Diing D.M Agany, Jessica LS Zylla, Shiva Aryal, Oxana Gorbatenko + 3 more
Tunnels in deep underground mines provide a unique interface between the surface and deep subsurface habitats. There, microbes from the surface may enter the deep tunnels as surface air is drawn into the deep mine tunnels to provide ventilation. This extreme hosting environment provides a condition for microbes to…
Yuki Amano, Rohan Sachdeva, Daniel Gittins, Karthik Anantharaman + 14 more
Underground research laboratories (URLs) provide a window on the deep biosphere and enable investigation of potential microbial impacts on nuclear waste, CO_2_ and H_2_ stored in the subsurface. We carried out the first multi-year study of groundwater microbiomes sampled from defined intervals between 140 and 400 m…
Yimin Dou, Xinming Wu, Hui Gao, Mingliang Liu + 8 more
Subsurface imaging understanding bridges observed geophysical data and quantitative geological models, supporting hydrocarbon exploration, CO2 storage site assessment, and geohazard monitoring. Over the past decade, deep learning has substantially reshaped interpretation workflows. To take stock of this progress, we…
S. Emil Ruff, Isabella Hrabe de Angelis, Megan Mullis, Jérôme P. Payet + 17 more
Subsurface environments constitute one of Earth’s largest habitats for microbial life, yet differences between surface and subsurface microbiomes and between marine and terrestrial microbiomes remain unclear. We analyzed 478 archaeal and 1054 bacterial amplicon sequence datasets and 147 metagenomes from diverse and…
Lily Momper, Caitlin P. Casar, Magdalena R. Osburn
The deep terrestrial subsurface is a large and diverse microbial habitat and a vast repository of biomass. However, in relation to its size and physical heterogeneity we have limited understanding of taxonomic and metabolic diversity in this realm. Here we present a detailed metagenomic analysis of samples from the…
Yohey Suzuki, Susan J. Webb, Mariko Kouduka, Hanae Kobayashi + 10 more
Recent advances in subsurface microbiology have demonstrated the habitability of multi-million-year-old igneous rocks, despite the scarce energy supply from rockwater interactions. Given the minimal evolution coupled with exceedingly slow metabolic rates in subsurface ecosystems, spatiotemporally stable igneous rocks…
T. C. Onstott, B. L. Ehlmann, H. M. Sapers, Max Coleman + 4 more
'Magnus Ivarsson' 'Jennifer Marlow' 'Anna Neubeck' 'P. B. Niles'] Here we review published studies on the abundance and diversity of terrestrial rock-hosted life, the environments it inhabits, the evolution of its metabolisms, and its fossil biomarkers to provide guidance in the search for the biomarkers of rock-hosted…
Daniel Lipus, Zeyu Jia, Megan Sondermann, Robert Bussert + 4 more
The Eger Rift subsurface is characterized by frequent seismic activity and consistently high CO_2_ concentrations, making it a unique deep biosphere ecosystem and a suitable site to study the interactions between volcanism, tectonics, and microbiological activity. Pulses of geogenic H_2_ during earthquakes may provide…
Authors not listed
Professor Marie Edmonds is a volcanologist at the University of Cambridge. She is interested in the role of magmatic volatiles in magma genesis, volcanic eruptions, and volatile geochemical cycling. Dr. Robert Hazen is a geologist at Carnegie Science and executive director of the Deep Carbon Observatory. His latest…
Adriana Paluszny, Robert W. Zimmerman
The global energy landscape is currently experiencing a significant shift towards non-hydrocarbon, sustainable energy sources, often referred to as ‘green energy’. This transition is being driven by the urgent need to address the problem of global warming caused by greenhouse gases, most of which are generated by the…
Xiang Yu, Carmen Otilia Catanescu, Robert Bird, Sriram Satagopan + 2 more
Technological and medical advances over the past few decades epitomize human capabilities. However, the increased life expectancies and concomitant land-use changes have significantly contributed to the release of ~830 gigatons of CO2 into the atmosphere over the last three decades, an amount comparable to the prior…
Aser Abbas, Joseph P. Vantassel, Brady R. Cox, Krishna Kumar + 1 more
'Jodie Crocker'] This paper presents a frequency-velocity convolutional neural network (CNN) for rapid, non-invasive 2D shear wave velocity (VS) imaging of near-surface geo-materials. Operating in the frequency-velocity domain allows for significant flexibility in the linear-array, active-source experimental testing…
Jodie Crocker, Krishna Kumar, Brady R. Cox
We present a novel method of using explainability techniques to design physics-aware convolutional neural networks (CNNs). We demonstrate our approach by developing a CNN for solving an inverse problem for shallow subsurface imaging. Although CNNs have gained popularity, the development of CNNs remains an art, as there…
Benjamin Adams, Jonathan Ogland-Hand, Jeffrey M. Bielicki, Philipp Schädle + 1 more
Sedimentary basins are ubiquitous, naturally porous and permeable, and the geothermal heat in these basins can be extracted with geologic water or CO 2 and used to generate electricity. Despite this, the broad potential that these formations may have for electricity generation is unknown. Here we investigate this…
Adedibu Sunny Akingboye
refraction methods from theories to existing and machine learning-based emerging prospects Authors: ['Adedibu Sunny Akingboye'] This comprehensive review explores electrical and seismic refraction methods, including their emerging techniques, namely electrical resistivity tomography (ERT) and seismic refraction…
Michael Yust, Brady R. Cox, Joseph P. Vantassel, Peter G. Hubbard
Distributed acoustic sensing (DAS) is a relatively new technology for recording stress wave propagation, with promising applications in both engineering and geophysics. DAS's ability to simultaneously collect high spatial resolution data (e.g., 1-m channel separation) over long arrays (e.g., kilometers) suggests that…
Víctor Vilarrasa, Silvia De Simone, Jesus Carrera, Antonio Villaseñor
'Antonio Villaseñor'] arising from Cesca et al. Nature Communications 10.1038/s41467-021-24949-1 (2021) A recent publication by Cesca et al.1 reanalyzes and expands seismic data to identify hypocenters of observed seismicity induced by the Castor Underground Gas Storage (UGS) operations. Their results confirm those of…
Frank Thomas, Franz A. Livio, Francesca Ferrario, Marco Pizza + 2 more
In view of the ever-increasing global energy demands and the imperative for sustainability in extraction methods, this article surveys subsidence monitoring systems applied to oil and gas fields located in offshore areas. Subsidence is an issue that can harm infrastructure, whether onshore or especially offshore, so it…
Joseph P. Vantassel, Krishna Kumar, Brady R. Cox
Non-invasive subsurface imaging using full waveform inversion (FWI) has the potential to fundamentally change engineering site characterization by enabling the recovery of high resolution 2D/3D maps of subsurface stiffness. Yet, the accuracy of FWI remains quite sensitive to the choice of the initial starting model due…
Authors not listed
Transition metal dichalcogenides (TMDs) are promising candidates for room-temperature gas sensing, but limited intrinsic adsorption hampers trace-level detection. Here, we introduce a scalable defect-engineering route that creates subsurface chalcogen vacancies—selectively generated in the bottom chalcogen layer by…