The Emperor Seamount Chain is a massive and richly biodiverse set of underwater mountains stretching about 3,000 kilometers (1,900 miles) south from the Aleutian Islands in the northwest Pacific. From the 1960s until the 1980s, bottom trawlers plied the area aggressively, decimating deep-sea coral communities and fish stocks, and removing biomass to a degree not […]
Самки осьминогов бросают в назойливых ухажеров камни и грязь riafan.ru - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from riafan.ru Daily Mail and Mail on Sunday newspapers.
В Тихом океане обнаружили новый вид моллюсков runews24.ru - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from runews24.ru Daily Mail and Mail on Sunday newspapers.
Jian Xu; Xiao-Ping Xia; Qiang Wang; Christopher J. Spencer; Bin He .
Abstract:
The mechanisms and processes by which subducted slab interacted with mantle
plume remain controversial, as direct observation of such interaction is
difficult to impossible. Compositional heterogeneity of large igneous
provinces (LIPs) additionally makes plume-slab interaction hard to detect.
Oxygen isotopes are sensitive enough to trace the source of magmas. Here we
provide evidence for plume-slab interaction mainly based on in situ zircon
Hf-O isotope analyses, as well as whole-rock elemental and Sr-Nd-Hf isotope
analyses, on the Late Permian and Early Triassic A-type granites on the
margin of the Emeishan LIP in SW China. These granites show typical A-type