The in situ differential scanning calorimetry (DSC) technique has been applied to investigate the solidification paths of a basaltic liquid. The starting glass was heated up to 1300°C, kept at this superliquidus temperature for 2 h and cooled at rates (ΔT/Δt) of 7, 60, 180, 1000, and 1800°C/h, down to 800 and 600°C. Glass transition temperature (T_g), crystallization temperature (T_{x_HR}) and melting temperature (T_m) were measured by in situ DSC spectra on heating. T_x measured along the cooling paths (T_{x_CR}) shows exothermic peaks that change from a single symmetric shape (7 and 60°C/h) to multi-component patterns (180, 1000, and 1800°C/h). The recovered products characterized by field emission gun source of the scanning electron microscopy and electron probe micro-analyzer-wavelength dispersive spectrometers show a phase assemblage of spinel (sp), clinopyroxene (cpx), melilite (mel), plagioclase (plg), and glass. Moreover, crystal size distributions (CSDs) and growth rates (G_max and G_CSD) were also determined. The crystal content slightly increases from 7 to 1800°C/h. Faceted sp are present in all the run products with an amount always <2 area%. Cpx increases from 7 to 1800°C/h, changing its texture from almost faceted to dendritic between 60 and 180°C/h. The area% of mel follows an asymmetric Gaussian trend, while plg nucleates only at 7°C/h with a content <2 area%. The coupling of DSC and SEM outcomes indicate that sp nucleate first, followed by cpx and mel (and/or plg). The increment of ΔT/Δt causes an increase of the CSD slope (m) and crystal population density per size (n₀), as well as a decrease of the crystal size, for both cpx and sp. The log-linear CSD segments with different slopes at 7 and 60°C/h suggest multiple nucleation events and crystal growth by coarsening. G_max and G_CSD for cpx and sp directly measured on the actual crystallization time by DSC spectra, both increase with the increasing of ΔT/Δt. The onset temperature of crystallization (T_xi) decreases as ΔT/Δt increases, following an exponential trend that defines the uppermost portion of a time-transformation-temperature-like curve. This analytical model allows us to quantitatively model the kinetic crystallization paths of dry basalts.

的 原位差示扫描量热法（DSC）技术已被用于研究玄武岩液体的凝固路径。将起始玻璃加热至1300℃，并保持在此温度下。超液相 温度2小时并以（ΔŤ/ΔŤ）的最高温度为7、60、180、1000和1800°C / h，低至800和600°C。玻璃化温度（Ť_g），结晶温度（Ť_{x_HR}）和熔化温度（Ť_m）通过原位 加热时的DSC光谱。 Ť沿冷却路径测得的_x（Ť_{x_CR}）显示的放热峰从单一对称形状（7和60°C / h）变为多组分模式（_180、1000和1800°C / h）。以扫描电子显微镜的场发射枪源和电子探针显微分析仪-波长色散光谱仪为特征的回收产品显示出尖晶石（sp），斜向辉石（cpx），莫来石（mel），斜长石（plg）和玻璃。此外，晶体尺寸分布（CSD）和生长速率（G_最大和G_CSD）也被确定。晶体含量从7增加到1800℃/ h。所有运行产品中均存在切面sp，其含量始终小于2面积％。Cpx从7升高到1800°C / h，其纹理在60到180°C / h之间从几乎刻面变为树枝状。mel的面积％遵循不对称的高斯趋势，而plg仅以7℃/ h成核，含量＜2面积％。DSC和SEM结果的耦合表明，sp先成核，然后是cpx和mel（和/或plg）。增量ΔŤ/ΔŤ 导致CSD斜率增加（米）和单位尺寸的晶体密度（ñcpx和sp都为₀），并且晶体尺寸减小。在7和60°C / h处具有不同斜率的对数线性CSD片段表明发生了多个成核事件，并且通过粗化而晶体生长。G_最大和G通过DSC光谱在实际结晶时间上直接测量的cpx和sp的_CSD均随Δ的增加而增加Ť/ΔŤ。结晶开始温度（Ť_xi）随Δ减小Ť/ΔŤ遵循定义时间变换温度样曲线最上部的指数趋势，增加。这种分析模型使我们能够定量地模拟干玄武岩的动力学结晶路径。