J. E. Moersch
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View article: Ancient Anorthosites on Mars: Widespread in the Lower Crust
Ancient Anorthosites on Mars: Widespread in the Lower Crust Open
We report extensive detections of feldspathic, likely anorthositic, lithologies within outcrops uplifted by the Argyre basin-forming impact on Mars. The radial position of feldspathic outcrops from the basin center indicates that they are …
View article: A Drone‐Based Thermophysical Investigation of Barringer Meteorite Crater Ejecta
A Drone‐Based Thermophysical Investigation of Barringer Meteorite Crater Ejecta Open
Impact cratering processes are ubiquitous throughout our solar system, and the distribution and modification of impact ejecta are sensitive to variable environmental and geologic surface conditions. Here we examine the scale dependency of …
View article: HyPyRameter: A Python Toolbox to Calculate Spectral Parameters from Hyperspectral Reflectance Data
HyPyRameter: A Python Toolbox to Calculate Spectral Parameters from Hyperspectral Reflectance Data Open
Hyperspectral image cubes are information rich, typically containing hundreds of wavelengths and millions of spatial pixels. To condense this information into a more interpretable form, it is common to parameterize certain aspects of the s…
View article: Evaluating the Use of Unoccupied Aircraft Systems (UASs) for Planetary Exploration in Mars Analog Terrain
Evaluating the Use of Unoccupied Aircraft Systems (UASs) for Planetary Exploration in Mars Analog Terrain Open
Planetary analog mission simulations are essential for testing science operations strategies and technologies. They also teach us how to use terrestrial analogs to inform studies of extraterrestrial environments. Unoccupied aircraft system…
View article: Surface grain size of alluvial fans on Mars from thermal inertia, as an indicator of depositional style
Surface grain size of alluvial fans on Mars from thermal inertia, as an indicator of depositional style Open
The depositional history of alluvial fans on Mars provides insight into the climatic conditions during the time of fan formation in the late Hesperian to early Amazonian.However, traditional stratigraphic analysis of the alluvial fan depos…
View article: Salt constructs in paleo-lake basins as high-priority astrobiology targets.
Salt constructs in paleo-lake basins as high-priority astrobiology targets. Open
<p>Introduction</p> <p>In environments where it is difficult for life to function, microbial organisms tend to inhabit pockets of locally favorable climatic conditions. Micro-climates conducive to the persistence of life …
View article: Mars uplifted massifs: unique and extensive samples of ancient crust.&#160;
Mars uplifted massifs: unique and extensive samples of ancient crust.  Open
<p>Introduction.</p> <p>Earth's most-ancient crust has been recycled through plate tectonics processes making it unlikely that we will ever directly sample it (although, one can imagine finding ancient Earth meteorites on…
View article: Surface Morphologies in a Mars-Analog Ca-Sulfate Salar, High Andes, Northern Chile
Surface Morphologies in a Mars-Analog Ca-Sulfate Salar, High Andes, Northern Chile Open
Salar de Pajonales, a Ca-sulfate salt flat in the Chilean High Andes, showcases the type of polyextreme environment recognized as one of the best terrestrial analogs for early Mars because of its aridity, high solar irradiance, salinity, a…
View article: GANGOTRI mission concept on the glacial key to the Amazonian climate of Mars
GANGOTRI mission concept on the glacial key to the Amazonian climate of Mars Open
Motivation and overview. The wealth of geologic information bound in Martian ice, including climate cycles, potential biomarkers
View article: Galactic Cosmic Ray Induced Neutron Environment on Mars
Galactic Cosmic Ray Induced Neutron Environment on Mars Open
©Copyright 2020. Government sponsorship acknowledged. LPI Contribution No. 2326, 2020, id.2538
View article: Thermophysical Properties of Martian Fluvial Sinuous Ridges: Inferences on “Inverted Channel” Induration Agent
Thermophysical Properties of Martian Fluvial Sinuous Ridges: Inferences on “Inverted Channel” Induration Agent Open
In denuded landscapes, terrestrial inverted fluvial landforms are preferentially preserved due to their greater resistance to erosion from clast armoring, lava infilling, or cementation. These induration agents have differing material prop…
View article: Bulk Hydrogen Content OF High-Silica Rocks in Gale Crater With the Active Dynamic Albedo of Neutrons Experiment
Bulk Hydrogen Content OF High-Silica Rocks in Gale Crater With the Active Dynamic Albedo of Neutrons Experiment Open
The Mars Science Laboratory (MSL) Curiosity rover recently traversed over plateaus of mafic aeolian sandstones (the 'Stimson' formation) that overlie mudstones (the 'Murray' formation). Within the Stimson formation we observed many lighter…
View article: Modeled Martian subsurface elemental composition measurements with the Probing In situ with Neutron and Gamma ray instrument
Modeled Martian subsurface elemental composition measurements with the Probing In situ with Neutron and Gamma ray instrument Open
The Probing In situ with Neutron and Gamma ray (PING) instrument is an innovative application of active neutron‐induced gamma ray technology. The objective of PING is to measure the elemental composition of the Martian regolith. This manus…
View article: Hydrogen and chlorine abundances in the Kimberley formation of Gale crater measured by the DAN instrument on board the Mars Science Laboratory Curiosity rover
Hydrogen and chlorine abundances in the Kimberley formation of Gale crater measured by the DAN instrument on board the Mars Science Laboratory Curiosity rover Open
The Dynamic Albedo of Neutron (DAN) instrument on board the Mars Science Laboratory Curiosity rover acquired a series of measurements as part of an observational campaign of the Kimberley area in Gale crater. These observations were planne…