GROWTH 3.0 is a software package to determine the subsurface 3D density distribution that adjust discrete gravity anomaly values determined from gravity observations. The software uses very general assumptions and quite automatically determines the 3D density structures described by the aggregation of thousands of small rectangular prisms. A previous version of the software was published in 2011. However, methodological developments and computational technical evolution made it necessary to upgrade the software to include new advances and recent improvements in the inversion methodology (automatic determination of density contrasts, background medium with downward density increase, etc.), and a change in the computer operating system (from Windows XP, which was compatible with the 2011 version, to Windows 10 Pro for the current version). Here we describe the new upgraded version of the software package (which can be downloaded free), its use and application, using the study of El Hierro (Canary Islands) as a test case from which to obtain a 3D density model of its crustal structure. We also give a brief geological and volcanological interpretation.

成长3.0是确定地下3D密度分布的软件包，该软件包可调整根据重力观测确定的离散重力异常值。该软件使用非常笼统的假设，并且可以自动确定由数千个小矩形棱镜的聚合所描述的3D密度结构。该软件的先前版本于2011年发布。但是，方法的发展和计算技术的发展使得有必要对软件进行升级，使其包括反演方法的新进展和最新改进（自动确定浓度对比，密度下降的背景介质）等等），以及计算机操作系统的更改（从与2011版本兼容的Windows XP更改为当前版本的Windows 10 Pro）。在这里，我们以El Hierro（加那利群岛）的研究为例，介绍了该软件包的新升级版本（可以免费下载），其使用和应用，以从中获取其地壳结构的3D密度模型。 。我们还简要介绍了地质学和火山学。