Systematic experimental studies on partial melting and subsolidus equilibration of three reconstituted spinel-peridotites have been carried out at temperatures ranging from 1000 to 1380℃ and pressures of 1.0 and 1.5 ...Systematic experimental studies on partial melting and subsolidus equilibration of three reconstituted spinel-peridotites have been carried out at temperatures ranging from 1000 to 1380℃ and pressures of 1.0 and 1.5 GPa. The results shows (1) during partial melting, Mg# [=Mg/(Mg+Fe)]and Cr# [=Cr/(Cr-Al)]of spinel increase with an increase in degrees of melting) (2) during subsolidus equilibration, with increasing temperatures, Mg# of spinel increases but Cr# of spinel remains almost unchanged in dunite and increases slightly in Iherzolite and harzburgite. The negative and quasi-linear Mg# -Cr# correlation of spinel represents an isotherm of total non-equilibrium. The same results have been obtained by means of mathematical modelling. It is also proved by Mg# -Cr# correlation of spinel in natural peridotites. As a result of the spinel subsolidus equilibration, only variation of Cr# of spinel is limited, and then Cr# of spinel can be used to estimate the relative degree of melting undergone by host rocks. The bigger Cr# of spinel is, the higher the degree of melting will be. By contrast, during crystallization magma, Mg# and Cr# of spinel decrease with decreasing temperatures. Likewise, Cr# of spinel in basalts may be used to indicate the feature of Cr2O3/Al2O3 of magma, and the compositional zoning of spinel may be used to study the evolution of magma (cooling rate and contamination).展开更多
子宫内膜癌是女性生殖系统常见的恶性肿瘤之一,其最常见的病理形态为子宫内膜样腺癌。早期子宫内膜癌预后较好,但仍有少部分患者预后不良。影响子宫内膜癌预后的不良因素包括肿瘤组织学分级、子宫肌层侵犯深度、淋巴脉管间隙浸润(lympho...子宫内膜癌是女性生殖系统常见的恶性肿瘤之一,其最常见的病理形态为子宫内膜样腺癌。早期子宫内膜癌预后较好,但仍有少部分患者预后不良。影响子宫内膜癌预后的不良因素包括肿瘤组织学分级、子宫肌层侵犯深度、淋巴脉管间隙浸润(lymphovascular space invasion,LVSI)、宫颈间质受累及淋巴结转移等。伴微囊性、伸长及碎片状(microcystic,elongated,fragmented,MELF)浸润是子宫内膜样腺癌的一种特殊的浸润子宫肌层的方式。多项研究证实MELF浸润模式与某些影响预后的不良病理因素相关,但是MELF浸润模式的预后意义尚不明确。现就MELF浸润模式的临床病理特征以及预后意义的研究进展进行综述,以期为未来MELF浸润模式的相关研究提供理论参考。展开更多
文摘Systematic experimental studies on partial melting and subsolidus equilibration of three reconstituted spinel-peridotites have been carried out at temperatures ranging from 1000 to 1380℃ and pressures of 1.0 and 1.5 GPa. The results shows (1) during partial melting, Mg# [=Mg/(Mg+Fe)]and Cr# [=Cr/(Cr-Al)]of spinel increase with an increase in degrees of melting) (2) during subsolidus equilibration, with increasing temperatures, Mg# of spinel increases but Cr# of spinel remains almost unchanged in dunite and increases slightly in Iherzolite and harzburgite. The negative and quasi-linear Mg# -Cr# correlation of spinel represents an isotherm of total non-equilibrium. The same results have been obtained by means of mathematical modelling. It is also proved by Mg# -Cr# correlation of spinel in natural peridotites. As a result of the spinel subsolidus equilibration, only variation of Cr# of spinel is limited, and then Cr# of spinel can be used to estimate the relative degree of melting undergone by host rocks. The bigger Cr# of spinel is, the higher the degree of melting will be. By contrast, during crystallization magma, Mg# and Cr# of spinel decrease with decreasing temperatures. Likewise, Cr# of spinel in basalts may be used to indicate the feature of Cr2O3/Al2O3 of magma, and the compositional zoning of spinel may be used to study the evolution of magma (cooling rate and contamination).
文摘子宫内膜癌是女性生殖系统常见的恶性肿瘤之一,其最常见的病理形态为子宫内膜样腺癌。早期子宫内膜癌预后较好,但仍有少部分患者预后不良。影响子宫内膜癌预后的不良因素包括肿瘤组织学分级、子宫肌层侵犯深度、淋巴脉管间隙浸润(lymphovascular space invasion,LVSI)、宫颈间质受累及淋巴结转移等。伴微囊性、伸长及碎片状(microcystic,elongated,fragmented,MELF)浸润是子宫内膜样腺癌的一种特殊的浸润子宫肌层的方式。多项研究证实MELF浸润模式与某些影响预后的不良病理因素相关,但是MELF浸润模式的预后意义尚不明确。现就MELF浸润模式的临床病理特征以及预后意义的研究进展进行综述,以期为未来MELF浸润模式的相关研究提供理论参考。
