مورد إلكتروني
Maar-diatreme infill features recorded in borehole imaging
| العنوان: | Maar-diatreme infill features recorded in borehole imaging |
|---|---|
| بيانات النشر: | Sociedad Geológica de España 2016-09-12 |
| تفاصيل مُضافة: | Generalitat de Catalunya Bolós, Xavier Jurado, Maria José Oms, O. Martí Molist, Joan Crespo, José Campeny, Gerard Gómez de Soler, Bruno Agustí, Jordi |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Oriented borehole images recorded with an ultrasonic acoustic televiewer and continuous coring recovery has allowed the characterization of different facies and volcanic processes involved in the infill of a maar-diatreme volcano type. Maar-diatremes are associated with strong explosions throughout most of their development, focused along feeder dikes and generally attributed to magma-water interaction. In the case study of Camp dels Ninots maar-diatreme (Girona, Spain) we have recognized four facies types located in the center of the maar-diatreme: volcanic ash, phreatomagmatic breccia with lithics and juveniles, vesicular pyroclasts (scoria), massive basalt or welded pyroclastic fragments. Ultrasonic televiewer images allow to characterize the different volcanic facies, since they display a different degree of reflectivity and textures. Other features such as fracturing and grain size can be directly measured on the images. |
| مصطلحات الفهرس: | Imágenes orientadas de sondeo, Testificación geofísica, Perforación wireline, Borehole imaging, Freatomagmatismo, Maar-diatreme, Geophysical logging measurements, Maar-diatrema, Wireline coring, Phreatomagmatism, comunicación de congreso |
| URL: | Publisher's version Sí |
| الإتاحة: | Open access content. Open access content openAccess |
| ملاحظة: | English |
| أرقام أخرى: | CTK oai:digital.csic.es:10261/147668 Geotemas 16: 571-573 (2016) 1103430387 |
| المصدر المساهم: | CSIC From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1103430387 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |