"The streamlining of the inversion setup, lightning-fast computation speeds you dream about and output displays make VOXI a pleasure to use. 3D models can be generated in a fraction of the time and effort on a regular PC/laptop. A very welcome development."
Carpentaria Exploration Ltd.
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VOXI Earth Modelling reduces the time and effort required to generate 3D models using geophysical inversion techniques. Access the cloud-powered VOXI modelling toolset within Geosoft Oasis montaj. Update and integrate your models inside the Geosoft environment for greater efficiency and insight.
VOXI Earth Modelling
Simple integrated user experience
Geosoft has designed the VOXI Earth Modelling experience to operate seamlessly within the Oasis montaj exploration platform. This significantly reduces the complexity and cost of preparing your data, creating your models and interpreting the results.
To achieve the best possible performance, Geosoft has optimised its geophysical inversion algorithms so they can scale across large computer clusters. This allows you to create and run earth model inversions in real time – minutes rather than hours – to meet the time-sensitive deadlines of your exploration projects.
Harnessing the cloud
Geosoft leverages the processing power of the Microsoft Azure cloud platform to run geophysical inversions in "real time" or scale resources to support large scale regional inversions. Since all of the processing is done in the cloud, you are free to work with and run other software on your local computer. Read the VOXI Earth Modelling Data and Architecture document for more details.
Access VOXI from anywhere
Since VOXI Earth Modelling is a hosted software service you can use Geosoft Oasis montaj to access it from wherever you have a reasonable internet connection. The service scales to how much and how often you need to use it so you only pay for the services you need for your project.
||Geophysical inversion of 2D gravity and magnetic profile or gridded data creates quantitative 3D models of the earth to further understand the structure and processes beneath the surface.|
||VOXI now supports inversion and forward modelling of Gravity Gradient Data. Generic vertical gravity gradient data is supported as well as direct import of two common data types: Falcon AGG data and Bell Geoscience/Artex LM FTG data.|
||Supplementary information can be used to constrain a geophysical model. You can customise and control constraints using: Parameter and Gradient reference models; Upper and Lower bounds; Parameter and Gradient weightings; Active Model; and Iterative Reweighting Model.|
||Menu driven step-by-step import of data and model creation streamlines the setup of modelling projects. Integration with Oasis montaj provides access to geophysical processing tools to prepare input data for modelling.|
||Interactive tools enable you to view, manipulate, and analyse input data parameters and modelling results. Seamless import to Oasis montaj 3D viewer ensures integration with additional exploration data such as geology, geochemistry, and drilling results.|
|Forward Modelling||A forward modelling method is provided for calculating the response of a given physical property of a user defined 3D voxel model.|
|Magnetization Vector Inversion (MVI) modelling||Support for Magnetization Vector Inversion is included to take into account the effects of both remanent and induced magnetization. This technique is robust in the presence of demagnetization, magnetic anisotropy, remanent magnetization, and low magnetic latitudes.|
|Iterative Reweighting Inversion Focusing (IRIF)||Iterative Reweighting Inversion Focusing takes a smooth earth model and uses it as a reweighting constraint when running a new inversion of the same data. The reweighting constraint acts to focus broad, lower amplitude positive anomalies into more compact, higher amplitude positive anomalies.|
Hardware and software requirements
Oasis montaj 8.0
A Geosoft ID is required to access VOXI Earth Modelling.
Windows 8 (32-bit and 64-bit)
Windows 7 SP1 (32-bit and 64-bit) - Recommended.
|CPU||A Dual Core processor is recommended. An Intel Celeron processor is not recommended.|
|RAM||4-8 GB recommended, 1 GB minimum required.|
|Graphics||Nvidia Professional 256MB 3D (OpenGL 2.0) Graphics Card recommended.|
|Printer/Plotters||Any Windows® supported colour printer. Hewlett Packard® large-format ink-jet plotters are recommended.|
|Installation Permissions||When installing Oasis montaj or Target, you MUST be logged on with Administrator permissions.|
|Installation Disk Space||2 GB or more of free space on the Program Files drive is required for the installation process.|
|Data Disk Space||Data disk space depends on the volume of project data to be processed and the printer driver you are using. We recommend 500 GB to 1 TB, minimum 50 GB.|
Internet Connection: To use VOXI, we recommend a medium to high-speed internet connection (512Kbps upload and 1Mbps download or higher). The faster your internet connection, the faster you will be able to upload your modelling information to the VOXI cloud servers and download your results.
Internet Browser: To use the internet capabilities in Oasis montaj or Target, you will need to install Internet Explorer 8.0 or later. This does not mean that you have to have Internet Explorer as your default browser; Oasis montaj and Target just use the internet connection technology supplied in IE8.
The following software prerequisites are required and will be downloaded and installed if not present:
• Microsoft .NET 4
• ESRI ArcEngine 10 (SP5)
For more information about Geosoft software system requirements, see the system requirements page