...Laura Petrella; Anthony E. Williams-Jones; Jean Goutier; Jeanette Walsh Abstract The Misery syenitic intrusion in northern Quebec is host to a potentially important, recently discovered rare earth element (REE)-Zr-Nb prospect, containing significant concentrations of both light and heavy REEs...

... northeast of the Diavik diamond mine and approximately 30 km from the Ekati plant complex. Unlike most kimberlites on the property that form discrete, single pipe intrusions, Misery is a complex of six main kimberlite bodies (Main, South, Southwest extension, Southeast complex, Northeast, and East) plus...

... Abstract M. J. Roobol writes: In a recent paper, P. E. Baker (1985), describes differences in radiocarbon ages obtained from pyroclastic deposits of Mt Misery, St Kitts. The ages reported by Roobol et al. 1981 are consistently older than those reported by Baker (1985). Unit E pyroclastic flow...

... happening in the mantle sources of diamond and in the rising kimberlitic magma. We used parcels of microcrystals of diamond (total of 330 stones) from Misery and Grizzly kimberlites, Ekati mine property, Northwest Territories, Canada. The results of morphological studies of resorption features combined...

... the north, showing the Shastina cone prominently on the west (right) side of the mountain. The summit peak is the Hotlum cone. A remnant of the western crater rim of the Misery Hill cone is visible between the other two cones. Figure 3. Simplified geologic map of Mount Shasta showing major...

... with northwestern shear-sense indicators observed in the hanging wall ( Tremblay et al. 1997 ). Along the eastern margin of the Betts Cove Complex and its northeastern extension, between Betts Cove and Red Cliff Pond, this thrust separates the Betts Head and Mount Misery pillow lavas from the talc–serpentine...

... not been considered as a REE host so far, very few REE data from other occurrences of fayalite-rich rocks are available. However, fayalite-quartz dikes in the Misery syenite intrusion (northern Quebec, Canada) contain up to 1 wt% HREE oxides in the whole rock ( Petrella et al., 2014 ). The available data...

.... 17 9 1973 18 12 1973 20 2 1974 © Geological Society of London 1974 1974 Geological Society of London References Baker P. E. Petrology of Mt Misery Volcano, St Kitts, West Indies Lithos 1968 1 124 50 Bowen N. L. The evolution of the Igneous Rocks...

... deposits ( Pekov et al. 2007 ; Lorenz et al. 2019 ). Symplectites composed of apatite matrix and inclusions of REE-rich minerals including britholite, monazite, and other REE minerals have been observed in a series of localities such as the Misery syenitic intrusion, Canada ( Petrella et al. 2014 ), Rodeo...

... to evaluate structural-chemical correlations for potential use in diamond exploration. Chromite grains of <300 µm size from the Koala, Misery, and Sheiba kimberlites in the Ekati property (Northwest Territories, Canada), as well as from exploration programs in Botswana and Gabon, Africa, were examined...

... into saturation with a single low-temperature intermediate plagioclase for an extended crystallization interval. By comparison, <1 km of monomineralic anorthosite has been documented in the c. 6.5 km thick Stillwater intrusion ( Boudreau 2016 ), representing only 15% of the column. The plagioclase...

... ]. Kimberlite age diamond exploration geochemistry Until a few years ago, despite Clifford’s rule, which states that economically diamondiferous kimberlites, regardless of their age of intrusion, occur only in areas underlain by basement older than 1600 Ma, no significant diamond deposits were known...

... that lead to the diversification of magmas. Chapter 12 deals with layered mafic intrusions (petrography and petrology), and uses Bushveld, Stillwater, and Skaergård as preferred examples. The next three chapters deal chiefly, though not exclusively, with basalts: mid-ocean ridge volcanism (a minomer...

... of the previously proposed basin-bisecting Mount Misery fault, a fault that directly linked the southern end of the Hayward fault with the southern Calaveras fault during extinction of pull-apart activity. Historic seismicity indicates that slip below a depth of 5 km is mostly transferred from the Calaveras fault...

... by intermediate Ti boninite, island-arc tholeiitic pillow basalt and breccia, and minor felsic tuff belonging to the Mount Misery Formation ( Skulski et al., 2010 ). The upper part of this sequence is structurally repeated in the hanging wall of the Rambler Brook thrust fault ( Fig. 2 ; Castonguay et al., 2009...

.... , Williams-Jones , A.E. , Goutier , J. , and Walsh , J. , 2014 , The nature and origin of the rare earth element mineralization in the Misery syenitic intrusion, northern Quebec, Canada : Economic Geology , v. 109 , p. 1643 – 1666 . Pezzotta , F. , Diella , V. , and Guastoni...