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T1  - Bilateral geochemical asymmetry in the Karoo large igneous province 
SN  -  /  
UR  - http://hdl.handle.net/10138/234192 
T3  -  
A1  - Luttinen, Arto V. 
A2  -  
PB  -  
Y1  - 2018 
LA  - eng 
AB  - In the Karoo large igneous province, the geochemical assessment of mantle source variability and structure is hampered by probable crustal contamination overprinting of compositionally diverse flood basalts. Mantle source characteristics have been defined only for exceptional, primitive rock types. Here I use a compiled dataset for over 800 samples to demonstrate that the abundance of Nb relative to Zr, Ti, and Y provides a useful geochemical tracer of mantle sources for variably contaminated ro... 
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IS  -  
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KW  - 1171 Geosciences; DRONNING MAUD LAND; CONTINENTAL FLOOD BASALTS; TRACE-ELEMENT COMPOSITION; CORE-MANTLE BOUNDARY; SOUTH-AFRICA; GONDWANA BREAKUP; PICRITE BASALTS; OCEANIC-CRUST; DEEP-MANTLE; MAGMA TYPES 
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ER  -