Absolute abundance and distribution of Rb, K and Sr in the earth

United classification of cosmic gamma-ray bursts and their counterparts

“…On the subsequent orbit of CGRO, 90 minutes later, EGRET (SC) detected 10 photons, one with energy of 18 GeV-within the 20 minutes time interval from the burst region. In that interval, EGRET (TASC) also detected radiation in the energy bands 1.1-6.1 MeV and 6.1-26.2 MeV, respectively (Hurley et al 1994c). However, during that time COMPTEL, observing the same source, did not detect any significant signal in the 0.3-10 MeV range (Winkler et al 1995).…”

“…The GRB duration, measured by BATSE, Ulysses and EGRET (TASC) equals 180 s, COMP-TEL equals 162 s. During 162 s the burst emission of highenergy photons up to 4.4 GeV were recorded by the EGRET instrument (Hurley et al 1994b(Hurley et al , 1994c. On the subsequent orbit of CGRO, 90 minutes later, EGRET (SC) detected 10 photons, one with energy of 18 GeV-within the 20 minutes time interval from the burst region.…”

“…However, during that time COMPTEL, observing the same source, did not detect any significant signal in the 0.3-10 MeV range (Winkler et al 1995). The spectrum measured by EGRET (SC) is not a high-energy extrapolation of the EGRET (TASC) MeV data (Hurley et al 1994c).…”

The origin of a Pre-Cambrian diorite-granite plutonic series from Pembrokeshire (Wales)

“…However, it may be suggested that deep sialic material of unusual composition has been involved. Hurley (1968) has presented evidence that the lower crust is severely depleted in potassium. However, evidence on this matter is limited and its importance cannot be determined at the present time.…”

Temporal and petrogenetic constraints on volcanic accretionary processes at 9-10 degrees north East Pacific Rise

“…The formation of the continental crust from Earth's early mantle is thought to have left a complementary upper mantle reservoir largely depleted and broadly homogeneous with respect to its incompatible element abundances and long-lived radiogenic isotope compositions (e.g., Allègre et al, 1983;DePaolo & Wasserburg, 1976;Hurley, 1968). This depleted reservoir, termed DMM (Zindler & Hart, 1986), or depleted MORB mantle, is considered to be the source for mid-ocean ridge basalts (MORB).…”