The ca. 1.83 Ga Trans-Hudson orogeny resulted from collision of an upper plate consisting the Hearne, Rae, and Slave provinces with a lower Superior province. While geologic record peak metamorphism within orogen suggests that these were single amalgamated craton this time onward, lack paleomagnetic poles province following orogenesis has made coherency difficult to test. We develop high-qualit...

Article history: Received 23 September 2016 Received in revised form 31 January 2017 Accepted 7 February 2017 Available online 9 February 2017 Volcanic eruptions on theMoon take place in conditions of low gravity and negligible atmospheric pressure, very different from those on Earth. These differences lead to characteristic lunar versions of hawaiian and strombolian explosive activity, and to ...

We demonstrate that a recent dike intrusion probably triggered a slow fault-slip event (SSE) on Kilauea volcano's mobile south flank. Our analysis combined models of Advanced Land Observing Satellite interferometric dike-intrusion displacement maps with continuous Global Positioning System (GPS) displacement vectors to show that deformation nearly identical to four previous SSEs at Kilauea occu...

flow passing through lateral intakes and channel junctions is turbulent. sediment flow and bed forms areaffected by these flow patterns and vice versa. in this research, a laboratory study was carried out toexplore a possible method for sediment control for a set of submerged vanes and a single spur dikesimultaneously. since a larger portion of the near-bed flow was diverted, the intake receive...

Mare domes, small shield volcanoes typically <∼30 km diameter, are part of the spectrum lunar volcanic features that characterize extrusive basalt deposits. We used new spacecraft data to document these in Tranquillitatis, among oldest maria and site commonly interpreted as an ancient degraded non-mascon impact basin. found 283 known suspected mare with majority (n = 229) concentrated on a broa...

A leucogranite sill in the footwall of extensional Pilat shear zone (PSZ) Eastern French Massif Central was emplaced and sheared a short time interval, between 301.8 ± 3.1 303.0 1.6 Ma (zircon U–Pb mica 40Ar/39Ar ages, respectively). Extension ended at 298.5 1.5 (40Ar/39Ar on mica) as shown by non deformed dike cross cutting zone. On hanging wall fault, opening St. Etienne Basin filled coarse c...

[1] A new magnetic map of the Moon, based on Lunar Prospector magnetometer observations, sheds light on the origin of the South Pole-Aitken basin (SPA), the largest and oldest of the recognized lunar basins. A set of WNW-trending linear to arcuate magnetic features, evident in both the radial and scalar observations, covers much of a 1000 km wide region centered on the NW portion of SPA. The so...

[1] The volcanic eruption on Miyakejima, Japan, in 2000 was marked by the largest earthquake swarm ever recorded in Japan, a seismicity migration accompanying a dike intrusion as the dike propagated from Miyakejima to the northwest, and formation of a caldera on Mount Oyama on Miyakejima. In this study, we propose a seismic source model which can be used to model both seismic and geodetic displ...

The formation and evolution of agricultural land uses in the Zhujiang Delta of South China are examined in the light of the dynamics of people and the environment and their interplay. The origin and propagation of agriculture are found to have a close relationship with the climate and sea level changes in the Holocene era. The development of rice cultivation, horticulture, and dike-pond system ...

Abstract Reverse fractionation modeling considering energy-constrained assimilation-fractional crystallization is performed to estimate primary magma compositions, degree of crustal contamination, pressure–temperature equilibrium with mantle, and potential temperatures for the origin Paleoproterozoic (~ 2.37–1.88 Ga) basaltic dikes in central eastern Dharwar Craton sills volcanics adjoining Cud...