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View article: The geological history and hazards of a long-lived stratovolcano, Mt. Taranaki, New Zealand
The geological history and hazards of a long-lived stratovolcano, Mt. Taranaki, New Zealand Open
Mt. Taranaki is an andesitic stratovolcano in the western North Island of New Zealand. Its magmas show slab-dehydration signatures and over the last 200 kyr they show gradually increasing incompatible element concentrations. Source basalti…
View article: Landslides on Ceres: Diversity and Geologic Context
Landslides on Ceres: Diversity and Geologic Context Open
Landslides are among the most widespread geologic features on Ceres. Using data from Dawn's Framing Camera, landslides were previously classified based upon geomorphologic characteristics into one of three archetypal categories, Type 1(T1)…
View article: Unique Light Scattering at Occator's Faculae on (1) Ceres
Unique Light Scattering at Occator's Faculae on (1) Ceres Open
The Occator crater on the dwarf planet Ceres is outstanding because of its relatively low age (∼22 Ma) and extremely young (≤4 Ma) and bright faculae on an otherwise mostly dark body (ratio of reflectances bright/dark >5). Knowledge of the…
View article: A Global Inventory of Ice‐Related Morphological Features on Dwarf Planet Ceres: Implications for the Evolution and Current State of the Cryosphere
A Global Inventory of Ice‐Related Morphological Features on Dwarf Planet Ceres: Implications for the Evolution and Current State of the Cryosphere Open
We present a comprehensive global catalog of the geomorphological features with clear or potential relevance to subsurface ice identified during the Dawn spacecraft's primary and first extended missions at Ceres. We define eight broad feat…
View article: Grid Mapping the Northern Plains of Mars: Geomorphological, Radar, and Water‐Equivalent Hydrogen Results From Arcadia Plantia
Grid Mapping the Northern Plains of Mars: Geomorphological, Radar, and Water‐Equivalent Hydrogen Results From Arcadia Plantia Open
A project of mapping ice‐related landforms was undertaken to understand the role of subsurface ice in the northern plains. This work is the first continuous regional mapping from CTX ( ConTeXt Camera , 6 m/pixel; Malin et al., ) imagery in…
View article: Grid Mapping the Northern Plains of Mars: A New Overview of Recent Water‐ and Ice‐Related Landforms in Acidalia Planitia
Grid Mapping the Northern Plains of Mars: A New Overview of Recent Water‐ and Ice‐Related Landforms in Acidalia Planitia Open
We used a grid‐mapping technique to analyze the distribution of 13 water‐ and ice‐related landforms in Acidalia Planitia as part of a joint effort to study the three main basins in the northern lowlands of Mars, that is, Acidalia, Utopia, …
View article: Grid Mapping the Northern Plains of Mars: Using Morphotype and Distribution of Ice‐Related Landforms to Understand Multiple Ice‐Rich Deposits in Utopia Planitia
Grid Mapping the Northern Plains of Mars: Using Morphotype and Distribution of Ice‐Related Landforms to Understand Multiple Ice‐Rich Deposits in Utopia Planitia Open
This work in Utopia Planitia is the first continuous regional mapping of ice‐related landforms integrated into an effort to study the three main basins (Arcadia, Acidalia, and Utopia Planitiae) in the northern plains. The distribution and …
View article: Geologic mapping of the Urvara and Yalode Quadrangles of Ceres
Geologic mapping of the Urvara and Yalode Quadrangles of Ceres Open
We conducted geologic mapping of the Urvara (Ac-13) and Yalode (Ac-14) Quadrangles (21–66°S, 180–360°E) of the dwarf planet Ceres utilizing morphologic, topographic, and compositional information acquired by NASA's Dawn mission. The geolog…
View article: Geologic constraints on the origin of red organic‐rich material on Ceres
Geologic constraints on the origin of red organic‐rich material on Ceres Open
The geologic context of red organic‐rich materials ( ROR ) found across an elongated 200 km region on Ceres is evaluated with spectral information from the multispectral framing camera ( FC ) and the visible and near‐infrared mapping spect…
View article: Fault Populations on Alba Mons, Mars, and their Age Relationships to Volcanic, Fluvial, and Glacial Processes
Fault Populations on Alba Mons, Mars, and their Age Relationships to Volcanic, Fluvial, and Glacial Processes Open
We map the cross-cutting relationships between
\nfaults, valley networks, and (volcanic) flows on Alba
\nMons to infer the temporal sequences of the major
\nprocesses that influenced the area. Preliminary
\nmapping on the northwestern flan…
View article: Detailed geological mapping of the fluvial deposits in Magong crater, Xanthe Terra, Mars
Detailed geological mapping of the fluvial deposits in Magong crater, Xanthe Terra, Mars Open
We present a detailed geological map of Magong
\nCrater in Xanthe Terra, Mars. The ancient crater is
\nsituated at the terminus of Sabrina Vallis and hosts
\nsedimentary deposits that were transported through
\nthis long and deeply incised…
View article: Geologic mapping of the Urvara and Yalode Quadrangles of Ceres
Geologic mapping of the Urvara and Yalode Quadrangles of Ceres Open
We conducted geologic mapping of the Urvara (Ac-13) and Yalode (Ac-14) Quadrangles (21–66°S, 180–360°E) of the dwarf planet Ceres utilizing morphologic, topographic, and compositional information acquired by NASA's Dawn mission. The geolog…
View article: Oxo Crater on (1) Ceres: Geological History and the Role of Water-ice
Oxo Crater on (1) Ceres: Geological History and the Role of Water-ice Open
Dwarf planet Ceres (∅ ∼ 940 km) is the largest object in the main asteroid belt. Investigations suggest that Ceres is a thermally evolved, volatile-rich body with potential geological activity, a body that was never completely molten, but …
View article: Pitted terrains on (1) Ceres and implications for shallow subsurface volatile distribution
Pitted terrains on (1) Ceres and implications for shallow subsurface volatile distribution Open
Prior to the arrival of the Dawn spacecraft at Ceres, the dwarf planet was anticipated to be ice‐rich. Searches for morphological features related to ice have been ongoing during Dawn's mission at Ceres. Here we report the identification o…
View article: Evolution of Occator Crater on (1) Ceres
Evolution of Occator Crater on (1) Ceres Open
The dwarf planet Ceres (diameter 939 km) is the largest object in the main asteroid belt. Recent investigations suggest that Ceres is a thermally evolved, volatile-rich body with potential geological activity, a body which was never comple…
View article: Cryovolcanism on Ceres
Cryovolcanism on Ceres Open
INTRODUCTION Classic volcanism prevalent on terrestrial planets and volatile-poor protoplanets, such as asteroid Vesta, is based on silicate chemistry and is often expressed by volcanic edifices (unless erased by impact bombardment). In ic…
View article: The geomorphology of Ceres
The geomorphology of Ceres Open
INTRODUCTION Observations of Ceres, the largest object in the asteroid belt, have suggested that the dwarf planet is a geologically differentiated body with a silicate core and an ice-rich mantle. Data acquired by the Dawn spacecraft were …
View article: Cratering on Ceres: Implications for its crust and evolution
Cratering on Ceres: Implications for its crust and evolution Open
INTRODUCTION Thermochemical models have predicted that the dwarf planet Ceres has, to some extent, formed a mantle. Moreover, due to viscous relaxation, these models indicate that Ceres should have an icy crust with few or no impact crater…