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| 1 | Geochemical constraints on the origin and tectonic setting of the serpentinized peridotites from the Paleoproterozoic Nyong series,Eseka area,SW Cameroon显示文摘Serpentinized rocks closely associated with Paleoproterozoic eclogitic metabasites were recently discovered at Eseka area in the northwestern edge of the Congo craton in southern Cameroon.Here,we present new field data,petrography,and first comprehensible wholerock geochemistry data and discuss the protolith and tectonic significance of these serpentinites in the region.The studied rock samples are characterized by pseudomorphic textures,including mesh microstructure formed by serpentine intergrowths with cores of olivine,bastites after pyroxene.Antigorite constitutes almost the whole bulk of the rocks and is associated(to the less amount)with tremolite,talc,spinel,and magnetite.Whole-rock chemistry of the Eseka serpentinites led to the distinction of two types.Type 1 has high MgO(>40 wt%)content and high Mg#values(88.80)whereas Type 2 serpentinite samples display relatively low MgO concentration and Mg#values(<40 and 82.88 wt%,respectively).Both types have low Al/Si and high Mg/Si ratios than the primitive mantle,reflecting a refractory abyssal mantle peridotite protolith.Partial melting modeling indicates that these rocks were derived from melting of spinel peridotite before serpentinization.Bulk rock high-Ti content is similar to the values of subducted serpentinites(>50 ppm).This similarity,associated with the high Cr contents,spinel-peridotite protolith compositions and Mg/Si and Al/Si ratios imply that the studied serpentinites were formed in a subductionrelated environment.The U-shaped chondrite normalizedREE patterns of serpentinized peridotites,coupled with similar enrichments in LREE and HFSE,suggest the refertilized nature due to melt/rock interaction prior to serpentinization.Based on the results,we suggest that the Eseka serpentinized peridotites are mantle residues that suffered a high degree of partial melting in a subductionrelated environment,especially in Supra Subduction Zone setting.These new findings suggest that the Nyong series in Cameroon represents an uncontested Paleoproterozoic suture zone between the Congo craton and the Sao Francisco craton in Brazil. | Philomene Nga Essomba Tsoungui Sylvestre Ganno Evine Laure Tanko Njiosseu Jean Lavenir Ndema Mbongue Brice Kamguia Woguia Landry Soh Tamehe Jonas Didero Takodjou Wambo Jean Paul Nzenti | 2020 | Acta Geochimica2020，39，3： | 3 |
| 2 | Protein dimerization between Lmo2 (Rbtn2) and TAL1 alters thymocyte development and potentiates T cell tumorigenesis in transgenic mice 显示文摘 | Larson RC Lavenir I Larson TA | 1996 | EMBO J1996，15，： | 1 |
| 3 | Analysis of tau phos phorylation and truncation in a mouse model of human tauopa- thy显示文摘 | Delobel P Lavenir I Fraser G | 2008 | Am J Pathol2008，172，1： | 1 |
| 4 | T-cell acute lymphoblastie lymphoma induced in transgenic mice by the RBTNI and RBTN2 LIM-domain genes显示文摘 | Fisch P Boehm T Lavenir I | 1992 | Oncogene1992，7，： | 1 |
| 5 | Protein dimerization between Lmo2 (Rbtn2) and Tall alters thymocyte development anti potentiates T cell tumorigenesis in transgcnic mice显示文摘 | Larson RC Lavenir I Larson TA | 1996 | EMBO J1996，15，： | 1 |
| 6 | Cell-cycle markers in a transgenic mouse model of human tauopathy: increased levels of eyclin-ctependent kinase inhibitors p21Cip1 and p27Kip1显示文摘 | Delobel P Lavenir I Ghetti B | 2006 | Am J Pathol2006，168，3： | 1 |
| 7 | Improved reliability of Pseudomonas aeruginosa PCR detection by the use of the species-specific ecfX gene target 显示文摘 | Lavenir R Jocktane D Laurent F | 2007 | J Microbiol Methods2007，70，： | 1 |
| 8 | Analysis of Tau Phosphorylation and Truncation in a Mouse Model of Human Tauopathy Analysis of Mouse Tauopathy显示文摘 | Patrice Delobel Isabelle Lavenir Graham Fraser | 2008 | AJP January 20082008，，： | 1 |
| 9 | T-cell acute lymphoblastic 显示文摘 | Fisch P Boehm T Lavenir I | 1992 | Oncogene1992，7，12： | 1 |
| 10 | T-cell acute lymphoblastic lymphoma induced in transgenic mice by the RBTN1 and RBTN2 LIM-domain genes显示文摘 | Fisch P Boehm T Lavenir I | 1992 | Oncogene1992，7，： | 1 |
| 11 | Stimulation of autophagy reduces neurodegeneration in a mouse model of human tauopathy显示文摘 | Schaeffer V Lavenir I Ozcelik S | 2012 | Brain2012，13，7： | 1 |
| 12 | An MLL-AP9 fusion gene made by homologous recombination causes acute leukemia in chemeric mice,a method to create fusion oncogenes显示文摘 | CORRAL J LAVENIR I ZMPEY H | 1996 | Cell1996，85，2： | 1 |
| 13 | Stimulation of autophagy reduces neurodegeneration in a mouse model of human tauopathy显示文摘 | Schaeffer V Lavenir I Ozcelik S | 2012 | Brain2012，135，7： | 1 |
| 14 | Cell-cycle markers in a transgenic mouse model of human tauopathy: increased levels of cyclin-dependent kinase inhibitors p21Cip 1 and p27Kip 1 显示文摘 | Delobel P Lavenir I Ghetti B Holzer M Goedert M | 2006 | Am J Pathol2006，168，3： | 1 |
| 15 | Improved reliability of Pseudomonas aeruginosa PCR detection by the use of the species-specific ecfX gene target显示文摘 | Lavenir R Jocktane D Laurent F | | 0，，01： | 1 |
| 16 | The oncogenic T cell LIM-protein Lmo2 forms part of a DNA-binding complex specifically in immature T cells显示文摘 | Grutz GG Bucher K Lavenir Lavenir I | 1998 | EMBO1998，17，： | 1 |
| 17 | Genome microevolution of chikungunya viruses causing the Indian Ocean outbreak 显示文摘 | Schuffenecker I Iteman I Michault A Murri S Frangeul L Vaney MC Lavenir R Pardigon N Reynes JM Pettinelli F Biscornet L Diancourt L Michel S Duquerroy S Guigon G Frenkiel MP Br6hin AC Cubito N Despr6s P Kunst F Rey FA Zeller H Brisse S | 2006 | PLoS Med2006，3，7： | 1 |
| 18 | Cell-cycle markers in a transgenic mouse model of human tauopathy: increased levels of cyclin-dependent kinase inhibitors p21Cip1 and p27Kip1 显示文摘 | Delobel P Lavenir I Ghetti B | 2006 | Am J Pathol2006，168，3： | 1 |
| 19 | Stimulation of autophagy re- duces neurodegeneration in a mouse model of human tauopathy 显示文摘 | Scbaeffer V Lavenir I Ozcelik S | 2012 | Brain2012，135，7： | 1 |
| 20 | Improved reliability of Pseudomonas aeruginosa PCR detection by the use of the species-specific ecfX gene target显示文摘 | Lavenir R Jocktane D Laurent F | 2007 | J Microbiol Methods2007，70，： | 1 |
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