Lunar activity from recent gas release

  title={Lunar activity from recent gas release},
  author={Peter H. Schultz and Matthew Staid and Carle M. Pieters},
Samples of material returned from the Moon have established that widespread lunar volcanism ceased about 3.2 Gyr ago. Crater statistics and degradation models indicate that last-gasp eruptions of thin basalt flows continued until less than 1.0 Gyr ago, but the Moon is now considered to be unaffected by internal processes today, other than weak tidally driven moonquakes and young fault systems. It is therefore widely assumed that only impact craters have reshaped the lunar landscape over the… 

Recent Gas Escape from the Moon

The Moon is generally thought to be geologically inactive, except for being pummeled by meteoroids of various sizes. The youngest returned igneous rocks are about 3 billion years old, although crater

Evidences of Relatively New Volcanic Flows on the Moon

It is generally believed that the Moon became inter-nally dead ∼1 b.y. from the present, and only old ( 1 b.y.) volcanic flows forming largely the mare basins are known to occur. The old volcanic

The New Moon: Major Advances in Lunar Science Enabled by Compositional Remote Sensing from Recent Missions

Volatile-bearing lunar surface and interior, giant magmatic-intrusion-laden near and far side, globally distributed layer of purest anorthosite (PAN) and discovery of Mg-Spinel anorthosite, a new


We follow Paper I with predictions of how gas leaking through the lunar surface could influence the regolith, as might be observed via optical transient lunar phenomena (TLPs) and related effects. We

Ina pit crater on the Moon: Extrusion of waning-stage lava lake magmatic foam results in extremely young crater retention ages

The enigmatic Ina feature on the Moon was recently interpreted to represent extrusive basaltic volcanic activity within the past 100 m.y. of lunar history, an extremely young age for volcanism on the

Lunar Outgassing, Transient Phenomena, and the Return to the Moon. I. Existing Data

Transient lunar phenomena (TLPs) have been reported for centuries, but their nature is largely unsettled and remains controversial. In this Paper I the database of TLP reports is subjected to a

Hollows on Mercury: MESSENGER Evidence for Geologically Recent Volatile-Related Activity

High-resolution images of Mercury’s surface from orbit reveal that many bright deposits within impact craters exhibit fresh-appearing, irregular, shallow, rimless depressions, which support the inference that Mercury‚s interior contains higher abundances of volatile materials than predicted by most scenarios for the formation of the solar system”s innermost planet.



Beginning and end of lunar mare volcanism

Mare volcanism on the Moon is commonly attributed to an important but relatively short-lived epoch of internal heating after 3,900 Myr BP but before about 2,500 Myr BP (refs 1, 2). Although some

Mineralogy of the last lunar basalts: Results from Clementine

The last major phase of lunar volcanism produced extensive high-titanium mare deposits on the western nearside which remain unsampled by landing missions. The visible and near-infrared reflectance

Lunar optical maturity investigations: A possible recent impact crater and a magnetic anomaly

[1] We have used maps of the OMAT optical maturity parameter, along with other Clementine UV-Vis image products, to study two interesting lunar features related to albedo and optical maturity.

Degradation of small mare surface features

Ring-moat structures are interpreted as remnants of flow topography associated with mare emplacement. Measurements of narrow moats characterizing these small mare features reveal a contradiction

Recent outgassing from the lunar surface: The Lunar Prospector Alpha Particle Spectrometer

[1] The Lunar Prospector Alpha Particle Spectrometer (APS) was designed to detect characteristic-energy alpha particles from the decay of Rn-222, Po-218, and Po-210 and to therefore map sites of

Abundance and Distribution of Iron on the Moon

The determined iron content of the lunar highlands crust supports the hypothesis that much of the Moon's crust was derived from a magma ocean and suggests that the bulk composition of the moon differs from that of the Earth's mantle.

Implications of atmospheric Ar-40 escape on the interior structure of the moon

Radiogenic Ar-40 escapes from the lunar atmosphere at a rate of about 2 x 10 to the 21st atoms/sec. This amounts to 8% of the rate of argon production in the entire moon by potassium decay. A curious

Preliminary results from the lunar prospector alpha particle spectrometer

The Lunar Prospector Alpha Particle Spectrometer (LP APS) builds on Apollo heritage and maps the distribution of outgassing sites on the Moon. The APS searches for lunar surface gas release events

Interpreting statistics of small lunar craters

Some of the wide variations in the crater-size distributions in lunar photography and in the resulting statistics were interpreted as different degradation rates on different surfaces, different

The Clementine Mission to the Moon: Scientific Overview

In the course of 71 days in lunar orbit, from 19 February to 3 May 1994, the Clementine spacecraft acquired just under two million digital images of the moon at visible and infrared wavelengths.