Henning Dypvik
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View article: Observations of Igneous Subsurface Stratigraphy during the Jezero Crater Floor Rapid Traverse from the RIMFAX Ground-penetrating Radar
Observations of Igneous Subsurface Stratigraphy during the Jezero Crater Floor Rapid Traverse from the RIMFAX Ground-penetrating Radar Open
Perseverance traversed the eastern, northern, and western margins of the Séítah formation inlier on the rover’s western fan front approach. Mapping the stratigraphy and extent of the Máaz and Séítah formations is key to understanding the d…
View article: Geological Modeling of Subsurface Structures from RIMFAX Ground Penetrating Radar Observations in Jezero Crater, Mars.  
Geological Modeling of Subsurface Structures from RIMFAX Ground Penetrating Radar Observations in Jezero Crater, Mars.   Open
Introduction:  NASA's Perseverance Rover is exploring the Jezero Crater carrying the RIMFAX ground penetrating radar. RIMFAX has acquired a continuous subsurface radar image at 10 cm intervals along the rover’s > 25 km long grou…
View article: Assessing Radar Attenuation in RIMFAX Soundings at the Jezero Western Fan Front, Mars
Assessing Radar Attenuation in RIMFAX Soundings at the Jezero Western Fan Front, Mars Open
Estimates of radar attenuation in the shallow Martian subsurface are retrieved from RIMFAX soundings along the Perseverance rover traverse. Specifically, analyzed data is from the Hawksbill Gap area during the rover's first drives onto the…
View article: Sedimentology and Stratigraphy of the Shenandoah Formation, Western Fan, Jezero Crater, Mars
Sedimentology and Stratigraphy of the Shenandoah Formation, Western Fan, Jezero Crater, Mars Open
Sedimentary fans are key targets of exploration on Mars because they record the history of surface aqueous activity and habitability. The sedimentary fan extending from the Neretva Vallis breach of Jezero crater's western rim is one of the…
View article: Ground penetrating radar observations of the contact between the western delta and the crater floor of Jezero crater, Mars
Ground penetrating radar observations of the contact between the western delta and the crater floor of Jezero crater, Mars Open
The delta deposits in Jezero crater contain sedimentary records of potentially habitable conditions on Mars. NASA’s Perseverance rover is exploring the Jezero western delta with a suite of instruments that include the RIMFAX ground penetra…
View article: The Neoproterozoic Valdres Group - depositional conditions and stratigraphical developments in the Mellane and Grønsennknippa sections, Valdres, Southern Norway
The Neoproterozoic Valdres Group - depositional conditions and stratigraphical developments in the Mellane and Grønsennknippa sections, Valdres, Southern Norway Open
The youngest part of the Valdres Group of south-central Norway (mainly the Neoproterozoic Rundemellen unit, Tonian – Cryogenian?) has been sedimentologically and stratigraphically studied and sampled at the Skarvemellen and Rundemellen sec…
View article: RIMFAX Ground Penetrating Radar Reveals Dielectric Permittivity and Rock Density of Shallow Martian Subsurface
RIMFAX Ground Penetrating Radar Reveals Dielectric Permittivity and Rock Density of Shallow Martian Subsurface Open
The Mars 2020 Perseverance Rover is equipped with the RIMFAX ground penetrating radar instrument which has been continuously surveying the shallow subsurface during the rover's journey. Within the first 379 mission days, we identify hyperb…
View article: Radar Attenuation in the Shallow Martian Subsurface: RIMFAX Time‐Frequency Analysis and Constant‐Q Characterization Over Jezero Crater Floor
Radar Attenuation in the Shallow Martian Subsurface: RIMFAX Time‐Frequency Analysis and Constant‐Q Characterization Over Jezero Crater Floor Open
Attenuation of radar waves in the subsurface can be quantified with a constant‐Q approximation through time‐frequency analysis. We implement the centroid frequency‐shift method and study Radar Imager for Mars' Subsurface Exploration (RIMFA…
View article: Shaking and splashing—A case study of far‐field effects of the Mjølnir asteroid impact on depositional environments in the Barents Sea
Shaking and splashing—A case study of far‐field effects of the Mjølnir asteroid impact on depositional environments in the Barents Sea Open
The Mjølnir impact crater in the Norwegian Barents Sea features among the 20 largest impact craters listed in the Earth Impact Database. The impact is dated to 142 ± 2.6 Ma, corresponding closely to the Jurassic/Cretaceous boundary in the …
View article: Ground penetrating radar observations of subsurface structures in the floor of Jezero crater, Mars
Ground penetrating radar observations of subsurface structures in the floor of Jezero crater, Mars Open
The Radar Imager for Mars Subsurface Experiment instrument has conducted the first rover-mounted ground-penetrating radar survey of the Martian subsurface. A continuous radar image acquired over the Perseverance rover’s initial ~3-kilomete…
View article: Pore system evolution in arenaceous regoliths - Case study from the Sila Massif (southern Italy)
Pore system evolution in arenaceous regoliths - Case study from the Sila Massif (southern Italy) Open
Porous and permeable crystalline rocks have the potential of being hydrocarbon reservoirs. In many cases, reservoir properties are created by rock-altering physico-chemical processes occurring in the near-surface environment. Hydrocarbon r…
View article: Planetary Terrestrial Analogues Library Project: 3. Characterization of Samples With MicrOmega
Planetary Terrestrial Analogues Library Project: 3. Characterization of Samples With MicrOmega Open
The Planetary Terrestrial Analogues Library (PTAL) project aims at building and exploiting a database involving several analytical techniques, to help characterize the mineralogical evolution of terrestrial bodies, starting with Mars. Arou…
View article: Leka Ophiolite Complex as analogy to the serpentinization-carbonation system on Mars.
Leka Ophiolite Complex as analogy to the serpentinization-carbonation system on Mars. Open
Serpentinization and carbonation have affected ultramafic rocks on Noachian Mars in several places called here serpentinization-carbonation systems (SCS). Among the most prominent SCS revealing mineral assemblages characteristic of serpent…
View article: Planetary Terrestrial Analogues Library (PTAL): online database platform and spectroscopic tools
Planetary Terrestrial Analogues Library (PTAL): online database platform and spectroscopic tools Open
The PTAL Project: Mars2020/Perseverance 1 and ExoMars/Rosalind Franklin 2 rovers will look for traces of present or past life on Mars. To do so, the spectroscopic systems included in their analytical payloads will investigate the geochemis…
View article: Leka Ophiolite Complex as analogy to the serpentinization-carbonation system on Mars.
Leka Ophiolite Complex as analogy to the serpentinization-carbonation system on Mars. Open
<p>Serpentinization and carbonation have affected ultramafic rocks on Noachian Mars in several places. Among the most prominent systems revealing mineral assemblages characteristic of serpentinization/carbonation is the Nili Fossae r…
View article: Analogue Rock Characterization with MicrOmega, within the H2020/PTAL project.
Analogue Rock Characterization with MicrOmega, within the H2020/PTAL project. Open
<p>The PTAL project [1] aims to build an Earth analogues database, the Planetary Terrestrial Analogues Library, to help characterizing the mineralogical evolution of terrestrial bodies, with a focus on Martian analogues (www.PTAL.eu)…
View article: PTAL multi-spectral database of planetary terrestrial analogues: Raman data overview
PTAL multi-spectral database of planetary terrestrial analogues: Raman data overview Open
The multi analytical study of terrestrial analogues is a useful strategy to deepen the knowledge about the geological and environmental evolution of Mars and other extraterrestrial bodies. In spite of the increasing importance that LIBS, N…
View article: Ground-Penetrating Radar Modeling Across the Jezero Crater Floor
Ground-Penetrating Radar Modeling Across the Jezero Crater Floor Open
This article assesses how the ground-penetrating radar RIMFAX will image the crater floor at the Mars 2020 landing site, where lithological compositions and stratigraphic relationships are under discussion prior to mission operation. A put…
View article: ExoMars Raman Laser Spectrometer: A Tool to Semiquantify the Serpentinization Degree of Olivine-Rich Rocks on Mars
ExoMars Raman Laser Spectrometer: A Tool to Semiquantify the Serpentinization Degree of Olivine-Rich Rocks on Mars Open
We evaluated the effectiveness of the ExoMars Raman laser spectrometer (RLS) to determine the degree of serpentinization of olivine-rich units on Mars. We selected terrestrial analogs of martian ultramafic rocks from the Leka Ophiolite Com…
View article: Radar Imager for Mars’ Subsurface Experiment—RIMFAX
Radar Imager for Mars’ Subsurface Experiment—RIMFAX Open
The Radar Imager for Mars’ Subsurface Experiment (RIMFAX) is a Ground Penetrating Radar on the Mars 2020 mission’s Perseverance rover, which is planned to land near a deltaic landform in Jezero crater. RIMFAX will add a new dimension to ro…
View article: Numerical Modelling of a Potential Oceanic Impact Structure
Numerical Modelling of a Potential Oceanic Impact Structure Open
. IntroductionCompared to other planetary bodies, terrestrial impact craters can be rather difficult to discover due to different geological processes, including sedimentation and erosion, that modify and eventually erase the original impa…
View article: The Planetary Terrestrial Analogues Library (PTAL)
The Planetary Terrestrial Analogues Library (PTAL) Open
<p>The Planetary Terrestrial Analogues Library project aims to build and exploit a spectral data base for the characterization of the mineralogical and geological evolution of terrestrial planets and small Solar System bodies. Basis …
View article: Evaluating the serpentinization degree of Martian analogues through the RLS ExoMars simulator: comparison between univariate and multivariate semi-quantification methods
Evaluating the serpentinization degree of Martian analogues through the RLS ExoMars simulator: comparison between univariate and multivariate semi-quantification methods Open
<p>As part of the ESA ExoMars rover payload, the Raman Laser Spectrometer (RLS) is scheduled to deploy on Mars in 2021. Together with MicrOmega (NIR) and MOMA (GC-MS), the instrument will analyze Martian subsoil samples to determine …