M. P. Martín-Redondo

M. P. Martín-Redondo
Instituto Nacional de Técnica Aeroespacial | INTA · Astrobiology Centre

Chemistry

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13
Publications
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146
Citations

Publications

Publications (13)
Article
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Article
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The hyperarid core of the Atacama Desert, the driest and oldest desert on Earth, has experienced a number of highly unusual rain events over the past three years, resulting in the formation of previously unrecorded hypersaline lagoons, which have lasted several months. We have systematically analyzed the evolution of the lagoons to provide quantita...
Article
[1] Similarities between the Atacama Desert (Chile) and Mars include extreme aridity, highly oxidizing chemistry, and intense ultraviolet radiation that promoted the photochemical production of perchlorates and nitrates. Concentration of these ions under hyperarid conditions led to the formation of nitrate- and perchlorate-bearing deposits in ephem...
Article
Hydrothermal and cold environments constitute two extremes for life and are relevant to evaluate the present or past life on Mars. Deception Island (Antarctica) is an excellent place to study the cold and warm underground habitats and their interfaces. They are extreme environments that have interest as terrestrial analogues to Mars. Cerro Caliente...
Article
Carbonate occurrence on Earth is used to characterize the possible potential habitats and its associated microbial life on early Mars.
Article
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The Rover Environmental Monitoring Station (REMS) is one of NASA/MSL's instruments, which has been designed for measuring ambient pressure, humidity, wind speed and direction, UV radiation, and air and ground temperature (GT). The GT-sensor is dedicated to measure the real temperature of the Martian surface, integrating the IR energy coming from th...
Article
A new method using microwave digestion combined with inductively coupled plasma-mass spectrometry (ICP-MS) was studied to analyze the elemental composition of a variety of komatiites samples. Microwave digestion consisted in two-stage heating and pressurizing acid treatments for maximum dissolution of the samples. We report here different quality c...
Article
Full-text available
Certain local atmospheric anomalies, such as the formation of unusually large ice conglomerations (megacryometeors), have been proposed to be a potential natural hazard for people and aviation, as well as geoindicators for fingerprinting larger-scale atmospheric environmental changes. On March 13th 2007, at approximately 10:15 am, an ice chunk weig...
Article
We are studying the permafrost in the Imuruk lake volcanic area (Alaska) in order to define biosignatures in cold environmens and develop new instrumentation for detecting life that may be used in future space exploration missions.
Article
Since the Galileo NIMS sensor obtained the spectral data of the surface of Europa, several laboratory studies have been performed to ascertain the composition of the dark terrains. Some hydrated salts and acids have been proposed to explain the spectral signatures of these areas, but no single mineral fit is completely suitable. Until now, a flash...
Article
Due to Mars surface environmental conditions (oxidative stress, UV radiation) there are few chances for life on the surface of the red planet. Permafrost on earth is located at circumpolar latitudes. Of special interest is permafrost on volcanic areas due to the similarities with Mars geology.
Article
Reaction of [Pt(CH3)2(COD)] (COD = 1,5-cyclooctadiene) with Ph2PCCCCPPh2 led to a mixture of [{Pt(CH3)2}2(mu-Ph2PC4PPh2)2] (1) and [{Pt(CH3)2}3(mu-Ph2PC4PPh2)3] (2). Reaction of [PtCl2(COD)] with Ph2PCCCCPPh2 led to a mixture of the thermally unstable compounds [{PtCl2}2(mu-Ph2PC4PPh2)2] (3) and [{PtCl2}3(mu-Ph2PC4PPh2)3] (4) which transform into [...

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