Nicolas Randazzo
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View article: Sedimentology and stratigraphy of the fluvial–deltaic Skrinkle Haven member, Tenby formation, Jezero Crater, Mars
Sedimentology and stratigraphy of the fluvial–deltaic Skrinkle Haven member, Tenby formation, Jezero Crater, Mars Open
In 2023, the Mars 2020 Perseverance rover investigated the Skrinkle Haven member of the Tenby formation in the > 3.5-billion-year Jezero Crater western fan. This unit was interpreted from orbiter data as bank attached, lateral-accretion…
View article: Fe-phosphates in Jezero Crater as evidence for an ancient habitable environment on Mars
Fe-phosphates in Jezero Crater as evidence for an ancient habitable environment on Mars Open
Phosphorus is an essential component for life, and in-situ identification of phosphate minerals that formed in aqueous conditions directly contributes toward one of the main goals of the Mars 2020 Perseverance rover: to seek signs of ancie…
View article: A fluvio-lacustrine environment preserved in the Jezero crater inlet channel, Neretva Vallis (Mars)
A fluvio-lacustrine environment preserved in the Jezero crater inlet channel, Neretva Vallis (Mars) Open
Introduction: Fluvial valley networks on Mars provide key sites for investigating the role of surface liquid water in Mars’ ancient past. Between June and August 2024, the Perseverance rover spent 85 sols exploring a series of outcrops in …
View article: Using X-Ray Computed Tomography (XCT) to Meet the Instrument Needs in a Sample Receiving Facility: Insights from Analogue Mars Samples
Using X-Ray Computed Tomography (XCT) to Meet the Instrument Needs in a Sample Receiving Facility: Insights from Analogue Mars Samples Open
Introduction: The NASA Mars 2020 Perseverance rover is collecting samples intended for Earth through the Mars Sample Return (MSR) programme [1]. Approximately 20–30 samples are expected to arrive in the 2030s, providing a unique opportunit…
View article: Multispectral Observations of Float Rocks Used to Investigate the Origin of Boulders on the Western Jezero Fan Front, Mars
Multispectral Observations of Float Rocks Used to Investigate the Origin of Boulders on the Western Jezero Fan Front, Mars Open
In Jezero crater, Mars, the Perseverance rover has explored the western fan and encountered loose pieces of rock separated from outcrops or “float” rocks. Comparing float rocks to in‐place outcrops can provide key insights into the crater'…
View article: Characterizing the Facies and Stratigraphy of the Enchanted Lake Area in Jezero Crater, Mars
Characterizing the Facies and Stratigraphy of the Enchanted Lake Area in Jezero Crater, Mars Open
Jezero crater contains a sedimentary fan deposit previously interpreted as a delta, which can be studied to better understand the aqueous history of Mars. After a year of traversing and sampling the crater floor, the Mars 2020 Perseverance…
View article: In situ crystallographic mapping constrains sulfate precipitation and timing in Jezero crater, Mars
In situ crystallographic mapping constrains sulfate precipitation and timing in Jezero crater, Mars Open
Late-stage Ca-sulfate–filled fractures are common on Mars. Notably, the Shenandoah formation in the western edge of Jezero crater preserves a variety of Ca-sulfate minerals in the fine-grained siliciclastic rocks explored by the Perseveran…
View article: Supplemental Material: Distinguishing tectonic versus eustatic controls in Turonian strata of the Western Interior Seaway
Supplemental Material: Distinguishing tectonic versus eustatic controls in Turonian strata of the Western Interior Seaway Open
Supplemental Text S1, Figure S1, and Tables S1-S4.
View article: Supplemental Material: Distinguishing tectonic versus eustatic controls in Turonian strata of the Western Interior Seaway
Supplemental Material: Distinguishing tectonic versus eustatic controls in Turonian strata of the Western Interior Seaway Open
Supplemental Text S1, Figure S1, and Tables S1-S4.
View article: Diagenetic History and Biosignature Preservation Potential of Fine‐Grained Rocks at Hogwallow Flats, Jezero Crater, Mars
Diagenetic History and Biosignature Preservation Potential of Fine‐Grained Rocks at Hogwallow Flats, Jezero Crater, Mars Open
The Mars 2020 Perseverance rover discovered fine‐grained clastic sedimentary rocks in the “Hogwallow Flats” member of the “Shenandoah” formation at Jezero crater, Mars. The Hogwallow Flats member shows evidence of multiple phases of diagen…
View article: Fe-phosphates in Jezero Crater: Chemical, Structural, and Spectral Evidence for an Ancient Habitable Environment on Mars
Fe-phosphates in Jezero Crater: Chemical, Structural, and Spectral Evidence for an Ancient Habitable Environment on Mars Open
Phosphorus is an essential component for life, and in-situ identification of phosphate minerals that formed in aqueous conditions directly contributes toward one of the main goals of the Mars 2020 Perseverance rover: to seek signs of ancie…
View article: Astrobiological Potential of Rocks Acquired by the Perseverance Rover at a Sedimentary Fan Front in Jezero Crater, Mars
Astrobiological Potential of Rocks Acquired by the Perseverance Rover at a Sedimentary Fan Front in Jezero Crater, Mars Open
The Perseverance rover has collected seven oriented samples of sedimentary rocks, all likely older than the oldest signs of widespread life on Earth, at the exposed base of the western fan in Jezero crater, Mars. The samples include a sulf…
View article: Probable Concretions Observed in the Shenandoah Formation of Jezero Crater, Mars and Comparison With Terrestrial Analogs
Probable Concretions Observed in the Shenandoah Formation of Jezero Crater, Mars and Comparison With Terrestrial Analogs Open
The Mars 2020 Perseverance Rover imaged diagenetic textural features in four separate sedimentary units in its exploration of the 25‐m‐thick Shenandoah formation at Jezero Crater, Mars, that we interpreted as probable concretions. These co…
View article: SEDIMENTARY EVOLUTION OF THE JEZERO WESTERN FAN, MARS
SEDIMENTARY EVOLUTION OF THE JEZERO WESTERN FAN, MARS Open
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View article: GNARALOO BAY: STRATIGRAPHIC RELATIONSHIPS AT THE APEX OF A MARTIAN FLUVIO-DELTAIC SYSTEM AT JEZERO CRATER, MARS
GNARALOO BAY: STRATIGRAPHIC RELATIONSHIPS AT THE APEX OF A MARTIAN FLUVIO-DELTAIC SYSTEM AT JEZERO CRATER, MARS Open
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View article: DEPOSITIONAL HYPOTHESES FOR THE EMPLACEMENT OF THE MARGIN UNIT, JEZERO CRATER, MARS, AND THE IMPLICATIONS FOR HABITABILITY AND ORGANIC PRESERVATION
DEPOSITIONAL HYPOTHESES FOR THE EMPLACEMENT OF THE MARGIN UNIT, JEZERO CRATER, MARS, AND THE IMPLICATIONS FOR HABITABILITY AND ORGANIC PRESERVATION Open
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View article: STRATIGRAPHY AND STRUCTURE OF THE MARGIN UNIT, JEZERO CRATER: IMPLICATIONS FOR FORMATION SETTING
STRATIGRAPHY AND STRUCTURE OF THE MARGIN UNIT, JEZERO CRATER: IMPLICATIONS FOR FORMATION SETTING Open
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View article: Constraints on Jezero paleolake history from its fluvial input
Constraints on Jezero paleolake history from its fluvial input Open
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View article: CHARACTERIZING FAN DEPOSITS ACROSS THE MARTIAN SURFACE: JEZERO'S NORTHERN FAN AND BEYOND
CHARACTERIZING FAN DEPOSITS ACROSS THE MARTIAN SURFACE: JEZERO'S NORTHERN FAN AND BEYOND Open
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View article: UP AND DOWN WENT JEZERO LAKE: SIGNIFICANT RESULTS FROM THE FIRST EVER SEQUENCE STRATIGRAPHIC ANALYSIS ON MARS
UP AND DOWN WENT JEZERO LAKE: SIGNIFICANT RESULTS FROM THE FIRST EVER SEQUENCE STRATIGRAPHIC ANALYSIS ON MARS Open
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View article: Landscape evolution on early Mars: insights from the Jezero western fan
Landscape evolution on early Mars: insights from the Jezero western fan Open
The modern surface of Mars does not sustain liquid water, however relict landforms observed on orbital images provide strong evidence of past aqueous activity. Nevertheless on-the-ground analysis of sedimentary strata are required to robus…
View article: Detection and quantification of organosulfur species in the Tagish Lake Meteorite by highly sensitive <scp>LC‐MS</scp>
Detection and quantification of organosulfur species in the Tagish Lake Meteorite by highly sensitive <span>LC‐MS</span> Open
We analyzed the methanol extracts of six pristine specimens of the Tagish Lake meteorite (TL1, TL4, TL5A, TL6, TL7, and TL10a) and heated and unheated samples of Allende using high‐performance liquid chromatography coupled with high‐resolu…
View article: Depositional Facies and Sequence Stratigraphy of Kodiak Butte, Western Delta of Jezero Crater, Mars
Depositional Facies and Sequence Stratigraphy of Kodiak Butte, Western Delta of Jezero Crater, Mars Open
High‐resolution 2D and 3D data remotely acquired by SuperCam's Remote Micro‐Imager and Mastcam‐Z aboard the Perseverance rover enabled us to characterize the stratigraphic architecture and sedimentary record of the Kodiak butte, an isolate…
View article: Present-day thermal and water activity environment of the Mars Sample Return collection
Present-day thermal and water activity environment of the Mars Sample Return collection Open
The Mars Sample Return mission intends to retrieve a sealed collection of rocks, regolith, and atmosphere sampled from Jezero Crater, Mars, by the NASA Perseverance rover mission. For all life-related research, it is necessary to evaluate …
View article: PAST VARIATIONS OF WATER LEVEL OF JEZERO PALEOLAKE
PAST VARIATIONS OF WATER LEVEL OF JEZERO PALEOLAKE Open
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View article: VISCOSITY AND FLOW PROPERTIES OF THE SEITAH OLIVINE-RICH LITHOLOGY
VISCOSITY AND FLOW PROPERTIES OF THE SEITAH OLIVINE-RICH LITHOLOGY Open
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View article: SURFACE EXPRESSION AND GEOMETRIES OF DELTAIC DEPOSITS OF JEZERO WESTERN FAN TOP (MARS)
SURFACE EXPRESSION AND GEOMETRIES OF DELTAIC DEPOSITS OF JEZERO WESTERN FAN TOP (MARS) Open
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View article: Going With the Flow: Sedimentary Evolution of the Jezero Western Fan, Mars
Going With the Flow: Sedimentary Evolution of the Jezero Western Fan, Mars Open
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View article: Regional Paleoenvironments Recorded in Sedimentary Rocks of the Western Fan-Delta, Jezero Crater, Mars
Regional Paleoenvironments Recorded in Sedimentary Rocks of the Western Fan-Delta, Jezero Crater, Mars Open
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