Academic literature on the topic 'Reverse weathering'

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Journal articles on the topic "Reverse weathering"

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Misra, S., and P. N. Froelich. "Lithium Isotope History of Cenozoic Seawater: Changes in Silicate Weathering and Reverse Weathering." Science 335, no. 6070 (January 26, 2012): 818–23. http://dx.doi.org/10.1126/science.1214697.

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Mackenzie, F. T., and L. R. Kump. "Reverse Weathering, Clay Mineral Formation, and Oceanic Element Cycles." Science 270, no. 5236 (October 27, 1995): 586. http://dx.doi.org/10.1126/science.270.5236.586.

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Li, Fangbing, Donald Penman, Noah Planavsky, Andrew Knudsen, Mingyu Zhao, Xiangli Wang, Terry Isson, et al. "Reverse weathering may amplify post-Snowball atmospheric carbon dioxide levels." Precambrian Research 364 (September 2021): 106279. http://dx.doi.org/10.1016/j.precamres.2021.106279.

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Jeong, Gi Young, and Chang-Sik Cheong. "Recurrent events on a Quaternary fault recorded in the mineralogy and micromorphology of a weathering profile, Yangsan Fault System, Korea." Quaternary Research 64, no. 2 (July 18, 2005): 221–33. http://dx.doi.org/10.1016/j.yqres.2005.05.008.

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AbstractRecurrence characteristics of a Quaternary fault are generally investigated on the basis of field properties that are rapidly degraded by chemical weathering and erosion in warm humid climates. Here we show that in intense weathering environments, mineralogical and micromorphological investigations are valuable in paleoseismological reconstruction. A weathering profile developed in Late Quaternary marine terrace deposits along the southeastern coast of the Korean Peninsula was disturbed by tectonic movement that appears to be a simple one-time reverse faulting event based on field observations. A comparative analysis of the mineralogy, micromorphology, and chemistry of the weathering profile and fault gouge, however, reveals that both the microfissures in the deformed weathering profile and larger void spaces along the fault plane were filled with multi-stage accumulations of illuvial clay and silt minerals of detrital origin, suggesting a repetition of fissuring and subsequent sealing in the weathering profile as it underwent continuous mineralogical transformation and particle translocation. We reconstruct a sequence of multiple faulting events unrecognized in previous field surveys, which requires revision of the view that the Korean Peninsula was tectonically stable, during the Late Quaternary.
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Kasting, James F. "The Goldilocks Planet? How Silicate Weathering Maintains Earth “Just Right”." Elements 15, no. 4 (August 1, 2019): 235–40. http://dx.doi.org/10.2138/gselements.15.4.235.

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Earth's climate is buffered over long timescales by a negative feedback between atmospheric CO2 level and surface temperature. The rate of silicate weathering slows as the climate cools, causing CO2 to increase and warming the surface through the greenhouse effect. This buffering system has kept liquid water stable at Earth's surface, except perhaps during certain ‘Snowball Earth’ episodes at the beginning and end of the Proterozoic. A similar stabilizing feedback is predicted to occur on rocky planets orbiting other stars if they share analogous properties with Earth, most importantly an adequate (but not overly large) abundance of water and a mechanism for recycling carbonate rocks into CO2. Periodic oscillations between globally glaciated and ice-free climates may occur on planets with weak stellar insolation and/or slow volcanic outgassing rates. Most silicate weathering is thought to occur on the continents today, but seafloor weathering (and reverse weathering) may have been equally important earlier in Earth's history.
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Isson, Terry T., and Noah J. Planavsky. "Reverse weathering as a long-term stabilizer of marine pH and planetary climate." Nature 560, no. 7719 (August 2018): 471–75. http://dx.doi.org/10.1038/s41586-018-0408-4.

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Michalopoulos, P., and R. C. Aller. "Rapid Clay Mineral Formation in Amazon Delta Sediments: Reverse Weathering and Oceanic Elemental Cycles." Science 270, no. 5236 (October 27, 1995): 614–17. http://dx.doi.org/10.1126/science.270.5236.614.

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Du, Jianghui, Brian A. Haley, Alan C. Mix, April N. Abbott, James McManus, and Derek Vance. "Reactive-transport modeling of neodymium and its radiogenic isotope in deep-sea sediments: The roles of authigenesis, marine silicate weathering and reverse weathering." Earth and Planetary Science Letters 596 (October 2022): 117792. http://dx.doi.org/10.1016/j.epsl.2022.117792.

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Guo, Yong Jie, Ling Pan Du, Jin Zhong, Fu Yue Fang, and Ci Yun Chen. "Study on Separation of a Low Magnesium Semi-Weathered Phosphate Ore from Yunnan." Advanced Materials Research 962-965 (June 2014): 852–55. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.852.

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Weathered phosphate ore is an important part of phosphate ore resources, it contains a huge reserves of weathered phosphate ore resources in Yunnan regions. With the gradual consumption of the rich phosphate ore resources, recycling for weathering phosphate ore is receiving more and more people's attention. In this study, using a low magnesium semi-weathered phosphate ore which from Yunnan Dianchi Lake area as the research object, and based on its ore properties established a experimental program of pre- desliming with cyclone and then flotation. The loss rate of P2O5 under 20% on the desliming operation, then under the condition of ore grade of P2O5 is 21.23% using a positive-reverse flotation process, ultimately obtained a test indicators of phosphate concentrate of P2O5 grade of 28.41% and P2O5 recovery of 87.25%, which is a foundation of development and application of phosphate ore from Tian Ning semi-weathering ore.
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Bararzadeh Ledari, Masoomeh, Yadollah Saboohi, Antonio Valero, and Sara Azamian. "Exergy Analysis of a Bio-System: Soil–Plant Interaction." Entropy 23, no. 1 (December 23, 2020): 3. http://dx.doi.org/10.3390/e23010003.

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This paper explains a thorough exergy analysis of the most important reactions in soil–plant interactions. Soil, which is a prime mover of gases, metals, structural crystals, and electrolytes, constantly resembles an electric field of charge and discharge. The second law of thermodynamics reflects the deterioration of resources through the destruction of exergy. In this study, we developed a new method to assess the exergy of soil and plant formation processes. Depending on the types of soil, one may assess the efficiency and degradation of resources by incorporating or using biomass storage. According to the results of this study, during different processes from the mineralization process to nutrient uptake by the plant, about 62.5% of the input exergy will be destroyed because of the soil solution reactions. Most of the exergy destruction occurs in the biota–atmosphere subsystem, especially in the photosynthesis reaction, due to its low efficiency (about 15%). Humus and protonation reactions, with 14% and 13% exergy destruction, respectively, are the most exergy destroying reactions. Respiratory, weathering, and reverse weathering reactions account for the lowest percentage of exergy destruction and less than one percent of total exergy destruction in the soil system. The total exergy yield of the soil system is estimated at about 37.45%.
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Book chapters on the topic "Reverse weathering"

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"Reverse Weathering." In Encyclopedia of Soil Science, 607. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-3995-9_485.

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Rahman, Shaily. "Reverse Weathering Reactions in Marine Sediments." In Encyclopedia of Ocean Sciences, 216–27. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-409548-9.10835-8.

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"CHAPTER EIGHTEEN Linking Sediment Processes to Global Elemental Cycles: Authigenic Clay Mineral Formation and Reverse Weathering." In Geochemistry of Marine Sediments, 509–16. Princeton University Press, 2007. http://dx.doi.org/10.1515/9780691216096-020.

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Rohling, Eelco J. "Mother Nature To The Rescue?" In The Climate Question. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190910877.003.0009.

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Now we come to the key issue. Many discussions about climate change turn to the well- known fact that (very) large CO2 fluctuations have happened in the geological past. This is then taken to imply that “we shouldn’t worry: nature has seen this all before, and will somehow clean up our external carbon emissions.” The veracity of this sentiment can be tested by considering the main mechanisms available in nature for extracting carbon from the atmosphere-ocean system. These are weathering, reforestation, and carbon burial in soils and sediments. In the next section, we look at the potential of these processes. Thereafter, we consider the case for human intervention, and potential ways forward. A first mechanism by which nature has dealt with past high- CO2 episodes is chemical weathering of rocks. In warmer and more humid climates, chemical weathering rates are increased, and this extracts CO2 from the atmosphere. However, CO2 removal through weathering at natural rates is an extremely slow process, which operates over hundreds of thousands to millions of years. Given time, there is no doubt that natural weathering will be capable of eventually removing the excess CO2, but this process is so slow that it offers no solace for the future, unless we are prepared to wait many hundreds of thousands of years. There may be some future in artificially increasing the weathering processes to remove anthropogenic carbon, but this is in its infancy—we will revisit this in sections 6.2 and 6.3. A second mechanism for carbon extraction from the atmosphere-ocean system concerns expansion of the biosphere, most notably through reforestation. We have discussed this before in terms of expansion and contraction of the biosphere during ice- age cycles. In today’s case, carbon extraction through biosphere expansion requires first that the industrial age’s trend of net deforestation is reversed. Interestingly, this actually may have happened at around 2003. Between 2003 and 2014, net global vegeta¬tion increased by about 4 GtC (i.e., at an average rate of about 0.4 GtC per year), due to a lucky combination of increased rainfall on the savannahs of Australia, Africa, and South America, regrowth of forests on abandoned farmland in Russia and former Soviet republics, and massive tree- planting projects in China.
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Conference papers on the topic "Reverse weathering"

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Liu, Xiao-Ming, Cheng Cao, Clement Bataille, Haijun Song, Huaichun Wu, Kate Tierney, Mattrew Saltzman, Christoph Korte, and Zhaofeng Zhang. "Enhanced reverse weathering in the End Permian and the Early Triassic Ocean." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.9777.

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Liu, Xiao-Ming, Cheng Cao, Clement P. Bataille, Haijun Song, Matthew Saltzman, Kate Tierney, Huaichun Wu, Christoph Korte, and Zhaofeng Zhang. "PERSISTENT LATE PERMIAN TO EARLY TRIASSIC WARMTH LINKED TO ENHANCED REVERSE WEATHERING." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-380868.

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Fantle, Matthew, Ben Davis Barnes, and Elizabeth Andrews. "The Secular Evolution of the Reverse Weathering Sink in the Global Li Cycle." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.688.

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Deepak, Ananyaa, Stefan Löhr, April Abbott, Shujun Han, Mukund Sharma, and Cassandra Wheeler. "Testing the Precambrian reverse weathering hypothesis using a 1-billion-year record of marine shales." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.10825.

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Du, Jianghui, Brian Haley, Alan Mix, and Derek Vance. "Reactive-transport modeling of the early diagenesis of Neodymium and its radiogenic isotope in deep-sea sediments: the roles of authigenesis, silicate weathering and reverse weathering." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.9791.

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Glumac, Bosiljka. "ASSESSING THE RATES AND PATTERNS OF TRAVERTINE WEATHERING FROM THE HISTORY OF TIBER RIVER FLOODING AND CONTEMPORARY "REVERSE GRAFFITI" ART IN ROME, ITALY." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-282138.

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Repeta, Michael, Ian D. Clark, and Thomas R. Benson. "LITHIUM CLAY MINERALIZATION BY REVERSE WEATHERING: LITHIUM ISOTOPE INSIGHTS INTO A NEW GENESIS MODEL FOR THE LARGEST KNOWN LITHIUM DEPOSIT IN NORTH AMERICA." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-383528.

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