Université de Neuchâtel

Emplacement of ultramafic rocks into the continental crust monitored by light and other trace elements: An example from the Geisspfad body (Swiss-Italian Alps)

Pelletier, Laure ; Müntener, Othmar ; Kalt, Angelika ; Vennemann, Torsten W. ; Belgya, Tamás

In: Chemical Geology, 2008, vol. 25, no. 1-2, p. 143-159

In order to evaluate the influence of continental crustal rocks on trace element budgets of serpentinized peridotites incorporated into the continental crust, we have analyzed the chemical composition of whole rock samples and minerals of the Geisspfad ultramafic complex (Swiss-Italian Alps). This complex represents a relict oceanic succession composed of serpentinites, ophicarbonates and...

Université de Neuchâtel

The oceanic mantle as an important repository for the light elements Li, Be and B

Pelletier, Laure ; Kalt, Angelika (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2008 ; Th.1988.

It is important to quantify the Li, Be and B content of oceanic peridotites, in order to evaluate their contributions to the light element input in subduction zones (compared to oceanic crust). In previous studies, the input related to oceanic mantle was usually neglected, because no strong data are available for the light element contents (minerals, whole rock samples). The objective of this...