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
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HSBC is keen to keep its top performers happy as it doubles down in Asia and lays the foundations for the next generation of leaders in its investment banking business.
HSBC s average material risk taker earned $1.1m last year, down from $1.2m in 2019. At the same time, the number of people across HSBC who earned more than €1m fell from 420 people in 2019 to 324 people last year. Many of those earning over €1m (9m HK$) are thought to be in Hong Kong.
Some have only arrived recently. Last month, for example, HSBC hired Winston Cheng as co-head of its TMT practice last month. The former Goldman Sachs banker is understood to be earning a guaranteed bonus, and will be one of HSBC s high earners for 2021.