Loic Peiffer

Loic Peiffer
Ensenada Center for Scientific Research and Higher Education | CICESE · Department of Geology

PhD

About

42
Publications
8,588
Reads
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523
Citations
Citations since 2017
21 Research Items
395 Citations
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
Additional affiliations
April 2013 - July 2016
Instituto de Energías Renovables, Universidad Nacional Autónoma de México
Position
  • Researcher
October 2011 - January 2013
Lawrence Berkeley National Laboratory
Position
  • PostDoc Position
February 2008 - October 2011
Universidad Nacional Autónoma de México
Position
  • PhD Student

Publications

Publications (42)
Article
Full-text available
The most accepted conceptual model to explain surface degassing of cold magmatic CO2 in volcanic-geothermal systems involves the presence of a gas reservoir. In this study, numerical simulations using the TOUGH2-ECO2N V2.0 package are performed to get quantitative insights into how cold CO2 soil flux measurements are related to reservoir and fluid...
Article
The accumulation of magmatic CO2 beneath low-permeability barriers may lead to the formation of CO2-rich gas reservoirs within volcanic systems. Such accumulation is often evidenced by high surface CO2 emissions that fluctuate over time. The temporal variability in surface degassing is believed in part to reflect a complex interplay between deep ma...
Article
Multicomponent solute geothermometry is a useful tool for estimating the temperature of a deep geothermal reservoir prior to exploration drilling. The method uses full water analyses to determine the temperature at which the saturation indices of an assemblage of reservoir minerals reflect equilibrium with the water. One of the challenges with this...
Article
The strontium isotope ratio (⁸⁷Sr/⁸⁶Sr) is a natural tracer commonly used to determine water sources, water flow trajectories, and mixing relationships. In high-temperature hydrothermal systems, the low solubility of retrograde minerals such as calcite and anhydrite may significantly reduce the dissolved Sr concentration. Further contribution of Sr...
Preprint
Amagmatic geothermal systems within regional-scale orogenic faults are promising renewable resources for heat and possibly electricity production. However, their behavior needs to be better understood to improve exploration and assessment of their energy potential. To provide more insight, we report a geochemical, geological, and geophysical study...
Article
A sclerobiont is any organism capable of fouling hard substrates. Sclerobionts have recently received attention due to their notable calcium carbonate contributions to reef structures and potential to offset drops in carbonate budgets in degraded reefs. However, due to their encrusting nature, it is difficult to quantify net calcium car-bonate prod...
Article
Full-text available
Se divulga brevemente sobre el potencial geotérmico en Baja California Sur.
Article
Full-text available
Decades of geochemical monitoring at active crater lakes worldwide have confirmed that variations in major elements and physico-chemical parameters are useful to detect changes in volcanic activity. However, it is still arduous to identify precursors of single phreatic eruptions. During the unrest phase of 2009–2016, at least 679 phreatic eruptions...
Article
The exploration of unexploited geothermal resources is required to encourage the use of renewable energy. This study focuses on La Jolla beach, Ensenada, Mexico. The beach hosts a thermal anomaly with temperatures of up to 52 °C at the surface and up to 93 °C at 20 cm depth. The objectives were to: map the thermal anomaly, understand the impact of...
Article
Major, minor and rare earth elements were analyzed in the acid sulphate - chloride thermal springs associated to Puracé volcano – hydrothermal system. The waters of Puracé were classified in 2 different groups as a function of the physico-chemical parameters and element distributions. Group 1 is characterized by the highest pH (⁓ 3.5), an outlet te...
Article
Rare Earth Elements (REE; lanthanides and yttrium) are elements with high economic interest because they are critical elements for modern technologies. This study mainly focuses on the geochemical behavior of REE in hyperacid sulphate brines in volcanic-hydrothermal systems, where the precipitation of sulphate minerals occurs. Kawah Ijen lake, a hy...
Article
Mexico is the world's sixth-largest geothermal energy producer. To pursue its transition to renewable energy, other potential geothermal areas are under exploration. The Tacaná hydrothermal system is one of them. In this work, we developed a preliminary 2D numerical mass and heat flow model of the natural state of the Tacaná volcano in order to gai...
Preprint
Full-text available
Magmatic volatiles can be considered as the surface fingerprint of active volcanic systems, both during periods of quiescent and eruptive volcanic activity. The spatial variability of gas emissions at Earths surface is a proxy for structural discontinuities in the subsurface of volcanic systems. We conducted extensive and regular spaced soil gas su...
Article
Magmatic volatiles can be considered as the surface fingerprint of active volcanic systems, both during periods of quiescent and eruptive volcanic activity. The spatial variability of gas emissions at Earth's surface is a proxy for structural discontinuities in the subsurface of volcanic systems. We conducted extensive and regular spaced soil gas s...
Article
The Wagner Basin (WB) is a shallow basin (depth < 225 m) belonging to the northernmost section of the Gulf of California rift system. Hydrothermal activity and high heat fluxes prevail in some regions of the WB. For this contribution, we report the first dataset of chemical (major and some trace elements) and isotopic compositions (δ¹⁸O, δD, ⁸⁷Sr/⁸...
Article
This study focuses on the geochemical and isotopic composition of natural spring waters and gases discharging at Los Geysers thermal area (northern Trans-Mexican Volcanic Belt, TMVB) and its relations to the regional tectonic framework. Water is of Na-HCO3 type and samples were collected at temperatures ranging from 48 °C to 98 °C and pH from 6.8 t...
Article
Full-text available
The critical role of rare earth elements (Lanthanides plus Yttrium; hereafter REE) in high-tech technologies and consequently their increasing demand from the industry, in addition to the capability of REE to trace water–rock interaction processes, boosted the study of REE in unconventional extreme environments. This study is focused on the geochem...
Article
The Los Humeros geothermal field is the third most important producer of geothermal electricity (70 MW) in Mexico. Geothermal fluids are hosted in fractured andesitic lavas and mostly consist of high enthalpy steam with limited water content (vapor fraction > 0.9). Despite the high reservoir temperature (~300–400 °C), thermal manifestations at the...
Article
Full-text available
Abstract: The magmatic – hydrothermal system of Kawah Ijen volcano is one of the most exotic on Earth, featuring the largest acidic lake on the planet, a hyper-acidic river and a passively degassing silicic dome. While previous studies have mostly described this unique system from a geochemical perspective, to date there has been no comprehensive g...
Chapter
Full-text available
El Chichón volcano hosts an intense hydrothermal system with surface manifestations consisting of an acid lake, steam vents, steam-heated boiling pools, mud pools and boiling springs in the crater, as well as several hot springs located on the outer slopes. This chapter reviews previous studies of the El Chichón volcano-hydrothermal system and prop...
Article
Water/Rock Interaction (WRI) experiments, Na-K geothermometry and geochemometrics modeling have been used for the study of the kinetic behavior of the volcanic rock dissolution under geothermal conditions. Ionic exchange reactions between Na-K and alkaline-feldspar minerals were monitored at 90 degrees C and 150 degrees C for a period of nearly 24...
Conference Paper
Full-text available
Reactive transport simulations were used to examine the chemical evolution of deep geothermal fluids as they ascend to the surface, and to assess constraints on the application of solute geothermometers. Al and Mg concentrations of deep fluids are sensitive to precipitation-dissolution processes, affecting reservoir temperatures estimated with mult...
Conference Paper
Full-text available
A 2D reactive transport model of the Dixie Valley geothermal field in Nevada, USA was developed to assess the conditions under which chemical geothermometers operate as powerful exploration tools. Model concentrations read out at the surface were processed by multicomponent geothermometry to compare inferred reservoir temperatures with true reservo...
Article
Full-text available
El Chichón crater lake is characterized by important variations in volume (40,000 m3 to 230,000 m3) and in chemical composition alternating between acid-sulfate and acid-chloride-sulfate composition (Cl-/SO42- = 0-79 molar ratio). These variations in volume can occur very fast within less than a few weeks, and are not always directly correlated wit...
Conference Paper
Full-text available
A 2D reactive transport model of the Dixie Valley, Nevada, geothermal area was developed to assess fluid flow pathways and fluid rock interaction processes. Setting up the model included specification of the mineralogy of the different rock units, the formulation of the corresponding mineral dissolution and precipitation reactions, the explicit def...
Article
The March-April 1982 Plinian eruption of El Chichón volcano destroyed the summit domes system and created a new 200 m deep crater. Since then, a shallow lake (~3 m) with acidic pH (~2.3), and temperature around 30°C appeared in the crater. This lake has never disappeared until now although its volume has suffered important variations from 40,000 m3...
Article
Full-text available
The catastrophic 1982 eruption of El Chichón (>1.5 km3 of erupted material) opened the upper hundred meters of the existing volcano-hydrothermal system. In the new formed 200m-deep crater a large shallow crater lake and numerous hot springs were formed. The lake existence and its salinity depend on the precipitation (~4000 mm/y) as well as a group...
Conference Paper
Full-text available
Major, trace and rare earth element compositions and 87Sr/ 86Sr ratios of waters from the thermal springs and crater lake at El Chichón volcano suggest the existence of two distinct thermal aquifers (Aq. 1 and Aq. 2). Na/Kand K/Mg ratios indicate that the Aq. 2 composition represents a deep mature hydrothermal fluid. The Ca/Sr ratios are unusually...
Chapter
Full-text available
Major, trace and rare earth element compositions and⁸⁷Sr/⁸⁶Sr ratios of waters from the thermal springs and crater lake at El Chichón volcano suggest the existence of two distinct thermal aquifers (Aq. 1 and Aq. 2). Na/K and K/Mg ratios indicate that the Aq. 2 composition represents a deep mature hydrothermal fluid. The Ca/Sr ratios are unusually l...
Article
Full-text available
Fluid and heat discharge rates of thermal springs of El Chichón volcano were measured using the chloride inventory method. Four of the five known groups of hot springs discharge near-neutral Na–Ca–Cl–SO4 waters with a similar composition (Cl ∼ 1500–2000 mg kg−1 and Cl/SO4 ∼ 3) and temperatures in the 50–74 °C range. The other group discharges acidi...
Article
The most probable scenario for the evolution of El Chichon volcano after the 1982 catastrophic dome- destroying eruption is a growth of a new extrusive dome. In that case the active volcano-hydrothermal system of El Chichon certainly will be affected, changing the chemical and heat output. Chemical monitoring of almost inaccessible hot springs on t...

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Projects

Projects (4)
Project
Understand the behavior of a geothermal spring heat flow subject to natural and anthropogenic variables
Project
To characterize the influence of geothermal fluids on exploitable aquifers by applying geological, geochemical, geophysical and hydrogeological techniques. Specific goals: - To define the geometry of exploitable aquifers and related geothermal systems through the interpretation of RMT, AMT, MT, and TEM data. - To estimate hydraulic parameters of the exploitable aquifers related to geothermal systems through the application of pumping tests. - To update the conceptual hydrogeological models of some geothermal areas in Central Mexico.
Project
Know the effects of climate change and ocean acidification on the calcification rate of encrusting organisms in the Mexican Pacific reefs