|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A comparative review of petrogenetic processes beneath the Cameroon Volcanic Line: Geochemical constraints显示文摘The origin and petrogenesis of the Cameroon Volcanic Line(CVL),composed of volcanoes that form on both the ocean floor and the continental crust,are difficult to understand because of the diversity,heterogeneity,and nature of available data.Major and trace elements,and Sr-Nd-Pb isotope data of volcanic rocks of the CVL spanning four decades have been compiled to reinterpret their origin and petrogenesis.Volcanic rocks range from nephelinite,basanite and alkali basalts to phonolite,trachyte and rhyolite with the presence of a compositional gap between Si O258e64 wt.%.Similarities in geochemical characteristics,modeled results for two component mixing,and the existence of mantle xenoliths in most mafic rocks argue against significant crustal contamination.Major and trace element evidences indicate that the melting of mantle rocks to generate the CVL magma occurred dominantly in the garnet lherzolite stability field.Melting models suggest small degree(<3%)partial melting of mantle bearing(6e10%)garnet for Mt.Etinde,the Ngaoundere Plateau and the Biu Plateau,and<5%of garnet for the oceanic sector of the CVL,Mt.Cameroon,Mt.Bambouto,Mt.Manengouba and the Oku Volcanic Group.The Sr-Nd-Pb isotope systematics suggest that mixing in various proportions of Depleted MORB Mantle(DMM)with enriched mantle 1 and 2(EM1 and EM2)could account for the complex isotopic characteristics of the CVL lavas.Low Mg number(Mg#100 Mg O/(Mg O t Fe O))and Ni,Cr and Co contents of the CVL mafic lavas reveal their crystallization from fractionated melts.The absence of systematic variation in Nb/Ta and Zr/Hf ratios,and Sr-Nd isotope compositions between the mafic and felsic lavas indicates progressive evolution of magmas by fractional crystallization.Trace element ratios and their plots corroborate mantle heterogeneity and reveal distinct geochemical signatures for individual the CVL volcanoes. | Asobo N.E.Asaah Tetsuya Yokoyama Festus T.Aka Tomohiro Usui Mengnjo J.Wirmvem Boris Chako Tchamabe Takeshi Ohba Gregory Tanyileke J.V.Hell | 2015 | Geoscience Frontiers2015，6，4： | 3 |
| 2 | Effect of extracap sular cataract extraction and phacoemulsification performed after traheculectomy on intraocular pressure显示文摘 | M ano JB Chako D Khan MY | 2002 | J Cataract Refract Surg2002，26，： | 1 |
| 3 | Emerging roles for novel antipsychotic medications in the treatment of schizophrenia显示文摘 | Andersson C Chakos M Mailman R | 1988 | Psychiatr Clin North Am1988，21，： | 1 |
| 4 | A new validation tool for assessing and improving 3D object segmentation显示文摘 | Gerig G Jomier M Chakos HM | 2001 | Lecture Notes in Computer Science2001，1，1： | 1 |
| 5 | Effectiveness of second-generation antipsychotics in treatment-resistant schizophrenia:a review and meta-analysis of randomized trials显示文摘 | Lieberman J Hoffman E | 2001 | Am J Psychiatry2001，158，4： | 1 |
| 6 | Effectiveness of second-generation antipsychotics in pa- tients with treatment-resistant schizophrenia: a review and meta-analysis of randomized trials 显示文摘 | Chakos M Lieberman J Hoffman E Bradford D Sheitman B | 2001 | Am Psychiatry2001，158，： | 1 |
| 7 | Factors influencing treatment response and outcome of fwst-epispde schiznphrenia:implications for understanding the pathophysiology of schizophrenia显示文摘 | lieberman JA Koreen AR Chakos M | | 0，，9： | 1 |
| 8 | Cryptosporidiosis in people: it's not just about the cows 显示文摘 | CHAKO C Z TYLER J W SCHULTZ L G | 2010 | J Vet Intern Med2010，24，1： | 1 |
| 9 | Emerging roles for novel antipsychotic medications in the treatment of sehizophrenia显示文摘 | Andersson C Chakos M Mailman R | 1988 | Psychiatr Clin North Am1988，21，： | 1 |
| 10 | Effectiveness of second generation antipsyehotics in treatment-resistant schizophrenia: a re view and recta-analysis of randomized trials显示文摘 | Chakos M Liebrman J Hoffman E | 2002 | Am J Psychiatry2002，158，： | 1 |
| 11 | Eight-year study of children status epilepticus: midazolam infusion in management and outcome显示文摘 | Koul R Chako A Javed H | 2002 | J child neurol2002，17，2： | 1 |
| 12 | Increase in caudate nuclei volumes of first-episode schizophrenic patients taking antipsychotic drugs显示文摘 | Chakos NH Lieberman JA Bilder RN | 1994 | Am J Psychiatry1994，，： | 1 |
| 13 | Factors influencing treatment response and outcome of first-episode schizophrenia: implications for understanding the pathophy- siology of schizophrenia显示文摘 | LIEBERMAN JA KOREEN AR CHAKOS M | 1996 | J Clin Psychiatry1996，579，： | 1 |
| 14 | Factors influencing treatment response and outcome of firse-episode schizophrenis:implications for enderstanding the pathophyaiology of schizophrenia显示文摘 | Liebeman JA Koreen AR Chakos M | 1996 | J Clin Psychiatry1996，57，9： | 1 |
| 15 | Computed tomography of pancreatic masses显示文摘 | Balthazar EJ Chako AC | | 0，，04： | 1 |
| 16 | depression in first- epi-sode schizophrenia显示文摘 | Koreen AR Siris SG Chakos M | 1993 | Am J Psychiatry1993，150，11： | 1 |
| 17 | Depression in first- episode schizophrenia 显示文摘 | Koreen AR Sifts SG Chakos M | 1993 | Am J Psychiatry1993，150，11： | 1 |
| 18 | Emerging roles for novel antipsychotic medications in the treatment of schizophtrnia显示文摘 | Andersson C Chakos M Mailman R | 1998 | Psychiatr Clin North Am1998，21，： | 1 |
| 19 | Effectiveness of second-generation antipsychotics in patients with treatment-resistant schizophrenia: a review and meta-analysis of randomized trials显示文摘 | Chakos M Lieberman J Hoffman E Bradford D Sheitman B | 2001 | Am J Psychiatry2001，158，4： | 1 |
| 20 | Phase transitions in peroskite at elevated temperatures-a power neutron diffraction study显示文摘 | Kennedy B J Howard C J Chakoμmakos B C | 1999 | Phvs: Condens Matter1999，11，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员