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The crepuscular planet. A model for the exhausted continental crust

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  • Valero, Alicia
  • Valero, Antonio
  • Gómez, Javier B.

Abstract

We propose a model for an exhausted upper continental crust. The Crepuscular Earth represents a degraded planet where all resources have been extracted and dispersed, and all fossil fuels have been burned. The starting point of the model of crepuscular crust is the composition given by the geochemist Grigor’ev, which is constrained by the conservation of mass statement between the chemical composition of the crust in terms of elements and in terms of minerals. Additionally, the model is given geological consistence, by introducing a series of assumptions based on geological observations. As a result, the obtained crepuscular crust is composed of the 294 most abundant minerals. Together with the model of exhausted atmosphere and hydrosphere developed in a previous paper, the study will serve as a reference for calculating the exergy of the current mineral capital on Earth and its degradation velocity.

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  • Valero, Alicia & Valero, Antonio & Gómez, Javier B., 2011. "The crepuscular planet. A model for the exhausted continental crust," Energy, Elsevier, vol. 36(1), pages 694-707.
    • Handle: RePEc:eee:energy:v:36:y:2011:i:1:p:694-707
    DOI: 10.1016/j.energy.2010.09.034
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    1. Finnveden, Göran & Östlund, Per, 1997. "Exergies of natural resources in life-cycle assessment and other applications," Energy, Elsevier, vol. 22(9), pages 923-931.
    2. Valero, Antonio & Valero, Alicia, 2010. "Exergoecology: A thermodynamic approach for accounting the Earth's mineral capital. The case of bauxite–aluminium and limestone–lime chains," Energy, Elsevier, vol. 35(1), pages 229-238.
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    Cited by:

    1. Palacios, Jose-Luis & Calvo, Guiomar & Valero, Alicia & Valero, Antonio, 2018. "The cost of mineral depletion in Latin America: An exergoecology view," Resources Policy, Elsevier, vol. 59(C), pages 117-124.
    2. Calvo, Guiomar & Valero, Alicia & Valero, Antonio & Carpintero, Óscar, 2015. "An exergoecological analysis of the mineral economy in Spain," Energy, Elsevier, vol. 88(C), pages 2-8.
    3. Stanek, Wojciech & Czarnowska, Lucyna, 2018. "Thermo-ecological cost – Szargut's proposal on exergy and ecology connection," Energy, Elsevier, vol. 165(PB), pages 1050-1059.
    4. Jose-Luis Palacios & Guiomar Calvo & Alicia Valero & Antonio Valero, 2018. "Exergoecology Assessment of Mineral Exports from Latin America: Beyond a Tonnage Perspective," Sustainability, MDPI, vol. 10(3), pages 1-18, March.
    5. Valero, Antonio & Valero, Alicia, 2012. "Exergy of comminution and the Thanatia Earth's model," Energy, Elsevier, vol. 44(1), pages 1085-1093.
    6. Sobhy Khedr & Melchiorre Casisi & Mauro Reini, 2022. "The Thermoeconomic Environment Cost Indicator (i ex-TEE ) as a One-Dimensional Measure of Resource Sustainability," Energies, MDPI, vol. 15(6), pages 1-14, March.
    7. Valero, Antonio & Palacino, Bárbara & Ascaso, Sonia & Valero, Alicia, 2022. "Exergy assessment of topsoil fertility," Ecological Modelling, Elsevier, vol. 464(C).
    8. Domínguez, Adriana & Valero, Alicia & Valero, Antonio, 2013. "Exergy accounting applied to metallurgical systems: The case of nickel processing," Energy, Elsevier, vol. 62(C), pages 37-45.
    9. Marta Iglesias-Émbil & Alejandro Abadías & Alicia Valero & Guiomar Calvo & Markus Andreas Reuter & Abel Ortego, 2022. "Criticality and Recyclability Assessment of Car Parts—A Thermodynamic Simulation-Based Approach," Sustainability, MDPI, vol. 15(1), pages 1-22, December.
    10. Jose-Luis, Palacios & Abadias, Alejandro & Valero, Alicia & Valero, Antonio & Reuter, Markus, 2019. "The energy needed to concentrate minerals from common rocks: The case of copper ore," Energy, Elsevier, vol. 181(C), pages 494-503.
    11. Valero, Alicia & Domínguez, Adriana & Valero, Antonio, 2015. "Exergy cost allocation of by-products in the mining and metallurgical industry," Resources, Conservation & Recycling, Elsevier, vol. 102(C), pages 128-142.
    12. Valero, Alicia & Valero, Antonio & Vieillard, Philippe, 2012. "The thermodynamic properties of the upper continental crust: Exergy, Gibbs free energy and enthalpy," Energy, Elsevier, vol. 41(1), pages 121-127.
    13. Agudelo, Andrés & Valero, Antonio & Usón, Sergio, 2013. "The fossil trace of CO2 emissions in multi-fuel energy systems," Energy, Elsevier, vol. 58(C), pages 236-246.
    14. Abel Ortego & Alicia Valero & Antonio Valero & Eliette Restrepo, 2018. "Vehicles and Critical Raw Materials: A Sustainability Assessment Using Thermodynamic Rarity," Journal of Industrial Ecology, Yale University, vol. 22(5), pages 1005-1015, October.
    15. Domínguez, Adriana & Czarnowska, Lucyna & Valero, Alicia & Stanek, Wojciech & Valero, Antonio, 2014. "Thermo-ecological and exergy replacement costs of nickel processing," Energy, Elsevier, vol. 72(C), pages 103-114.
    16. Gabriel Carmona, Luis & Whiting, Kai & Valero, Alicia & Valero, Antonio, 2015. "Colombian mineral resources: An analysis from a Thermodynamic Second Law perspective," Resources Policy, Elsevier, vol. 45(C), pages 23-28.
    17. Jamali-Zghal, N. & Le Corre, O. & Lacarrière, B., 2014. "Mineral resource assessment: Compliance between emergy and exergy respecting Odum's hierarchy concept," Ecological Modelling, Elsevier, vol. 272(C), pages 208-219.
    18. Antonio Valero & Alicia Valero, 2015. "Thermodynamic Rarity and the Loss of Mineral Wealth," Energies, MDPI, vol. 8(2), pages 1-16, January.
    19. Jia, Hongxiang & Li, Tianjiao & Wang, Anjian & Liu, Guwang & Guo, Xiaoqian, 2021. "Decoupling analysis of economic growth and mineral resources consumption in China from 1992 to 2017: A comparison between tonnage and exergy perspective," Resources Policy, Elsevier, vol. 74(C).
    20. Valero, Alicia & Valero, Antonio & Calvo, Guiomar, 2015. "Using thermodynamics to improve the resource efficiency indicator GDP/DMC," Resources, Conservation & Recycling, Elsevier, vol. 94(C), pages 110-117.
    21. Valero, Alicia & Valero, Antonio & Calvo, Guiomar & Ortego, Abel & Ascaso, Sonia & Palacios, Jose-Luis, 2018. "Global material requirements for the energy transition. An exergy flow analysis of decarbonisation pathways," Energy, Elsevier, vol. 159(C), pages 1175-1184.
    22. Valero, Alicia & Valero, Antonio & Stanek, Wojciech, 2018. "Assessing the exergy degradation of the natural capital: From Szargut's updated reference environment to the new thermoecological-cost methodology," Energy, Elsevier, vol. 163(C), pages 1140-1149.
    23. Guiomar Calvo & Alicia Valero & Luis Gabriel Carmona & Kai Whiting, 2015. "Physical Assessment of the Mineral Capital of a Nation: The Case of an Importing and an Exporting Country," Resources, MDPI, vol. 4(4), pages 1-14, November.

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