Bu araştırmada menderes coğrafi oluşumları ile karakterize edilen Ordu İli Aybastı İlçesi Perşembe yaylasından toplanan lokal endemik Alchemilla orduensis çalışılmıştır. Bitkinin vejetatif ve generetif dönemlerinde örneklerinin toprak üstü altı kısımlarında N, C, H S elementlerinin miktarları tespit edilmiştir. elementine çiçekli dönemdeki bitki örneklerinde az miktarda rastlanılmıştır. N mikta...

It is reported about the finding of 29 alien species in Provideniya Village (Providenskiy District, Chukotskiy Avtonomniy Okrug) and its neighborhood 2021. The 17 these were not previously indicated for Chukotka, Alchemilla breviloba was first collected Russian Far East. Dianthus superbus Galium uliginosumwere found time northern part A feature flora numerous rare only but also more southern re...

We review recent developments in the study of volcanism and tectonics on Venus. Venus’s crust is basaltic, dry, and probably about 30 km thick. The mantle convects, giving rise to plumes, and has a similar composition and mean temperature (∼1300◦C), but a higher viscosity (∼1020 Pa s), than that of the Earth. Inferred melt generation rates constrain the lithospheric thickness to between 80 and ...

Thermal conductivity of the Earth's lower mantle greatly impacts the mantle convection style and affects the heat conduction from the core to the mantle. Direct laboratory measurement of thermal conductivity of mantle minerals remains a technical challenge at the pressure-temperature (P-T) conditions relevant to the lower mantle, and previously estimated values are extrapolated from low P-T dat...