Young mare volcanism in the Orientale region contemporary with the Procellarum KREEP Terrane (PKT) volcanism peak period ∼2 billion years ago

  title={Young mare volcanism in the Orientale region contemporary with the Procellarum KREEP Terrane (PKT) volcanism peak period ∼2 billion years ago},
  author={Yuichiro Cho and Tomokatsu Morota and Jun'ichi Haruyama and Minami Yasui and Naru Hirata and Seiji Sugita},
  journal={Geophysical Research Letters},
The crater retention ages of the mare deposits within the Orientale multi‐ring impact basin are investigated using 10‐m resolution images obtained by the SELENE (Kaguya) spacecraft, in order to constrain the volcanic history of the Moon around the nearside‐farside boundary. Precise crater‐counting analyses reveal that mare deposits in the Orientale region are much younger than previously estimated: ∼2.9 Ga mare basalt in the eastern part of Mare Orientale and ∼1.8–2.2 Ga mare deposits in Lacus… 

Lunar mare volcanism: lateral heterogeneities in volcanic activity and relationship with crustal structure

Abstract Lunar mare basalts are spatially unevenly distributed, and their abundances differ between the nearside and farside of the Moon. Although mare asymmetry has been attributed to thickness

Magma source transition of lunar mare volcanism at 2.3 Ga

Mare basalts provide insights into the composition and thermal history of the lunar mantle. The ages of mare basalts suggest a first peak of magma activity at 3.2–3.8 Ga and a second peak at ~2 Ga.

Lateral heterogeneity of lunar volcanic activity according to volumes of mare basalts in the farside basins

Estimates for volumes of mare basalts are essential to understand the thermal conditions of the lunar mantle and its lateral heterogeneity. In this study, we estimated the thicknesses and volumes of

Potassium Map from Chang'E-2 Constraints the Impact of Crisium and Orientale Basin on the Moon

The new global potassium distribution on the Moon detected by Chang'E-2 Gamma-ray Spectrometer is found to be in general agreement with previous observation and it is proposed that Crisium and Orientale basin-forming impact events may have penetrated to the lower crust and excavate the deeper materials to the lunar surface.

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

Mare Domes in Mare Tranquillitatis: Identification, Characterization, and Implications for Their Origin

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The history of mare volcanism in the Orientale Basin: Mare deposit ages, compositions and morphologies

The eruptive history of mare basalts in the Orientale Basin has been studied, using Lunar Orbiter 4 high-resolution photographs, Zond 8 photographs, and recently acquired Galileo EM-1 multispectral

Lunar mare deposits associated with the Orientale impact basin: New insights into mineralogy, history, mode of emplacement, and relation to Orientale Basin evolution from Moon Mineralogy Mapper (M3) data from Chandrayaan‐1

[1] Moon Mineralogy Mapper (M3) image and spectral reflectance data are combined to analyze mare basalt units in and adjacent to the Orientale multiring impact basin. Models are assessed for the

The “Procellarum KREEP Terrane”: Implications for mare volcanism and lunar evolution

Geophysical, remote-sensing, and sample data demonstrate that the Procellarum and Imbrium regions of the Moon make up a unique geochemical crustal province (here dubbed the Procellarum KREEP

Long-Lived Volcanism on the Lunar Farside Revealed by SELENE Terrain Camera

We determined model ages of mare deposits on the farside of the Moon on the basis of the crater frequency distributions in 10-meter-resolution images obtained by the Terrain Camera on SELENE

Major lunar crustal terranes: Surface expressions and crust‐mantle origins

In light of global remotely sensed data, the igneous crust of the Moon can no longer be viewed as a simple, globally stratified cumulus structure, composed of a flotation upper crust of anorthosite

Ages and stratigraphy of mare basalts in Oceanus Procellarum, Mare Nubium, Mare Cognitum, and Mare Insularum

Accurate estimates of mare basalt ages are necessary to place constraints on the duration and the flux of lunar volcanism as well as on the petrogenesis of lunar mare basalts and their relationship

The Longevity of Lunar Volcanism: Implications of Thermal Evolution Calculations with 2D and 3D Mantle Convection Models

Abstract Lunar volcanism, as is generally accepted, started well before the emplacement of the mare fill at 3.1–3.9 Ga b.p. and likely extended well into the Eratosthenian (3.1–1.1 Ga b.p.). The

Ages of Mare Basalts on the Lunar Nearside: A Synthesis

The chronology of lunar volcanism is based on radiometric ages determined from Apollo and Luna landing site samples, regional stratigraphic relationships, and crater degradation and size-frequency