Academic Journal
Astronomically and tectonically linked variations in gamma-ray intensity in Late Miocene hemipelagic successions of the Eastern Mediterranean Basin
| العنوان: | Astronomically and tectonically linked variations in gamma-ray intensity in Late Miocene hemipelagic successions of the Eastern Mediterranean Basin |
|---|---|
| المؤلفون: | George Postma, Johan H. Ten Veen |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://www.geo.uu.nl/~gpostma/pdf van MS/29. Postma %26 tenVeen 1999 Gamma ray_Sediment Geol.pdf. |
| سنة النشر: | 1997 |
| المجموعة: | CiteSeerX |
| مصطلحات موضوعية: | gamma-ray logs, hemipelagics, hemipelagic record, astronomical cycles, deep-water ventilation, Mediterranean Basin, authigenic uranium |
| الوصف: | Amplitude variations of a 3 My gamma-ray record of Late Miocene hemipelagic successions on Gavdos (Crete, Greece) show remarkable correlation with the amplitude variations of the theoretical insolation curve of Laskar et al. (1993) [Astron. Astrophys. 270, 522–533], with peaks for precession, 100 ka and 400 ka eccentricity cycles. Overall increases in gamma-ray intensities around 8.3 Ma, 7.9 and from 7.16 Ma till the end of our record coincide with tectonic events that can be related to the convergence of the African and the Eurasian plates. These events may have caused important changes in water circulation related to the progressive closure of the seaways between the Mediterranean Basin and the Atlantic |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.484.2900; http://www.geo.uu.nl/~gpostma/pdf van MS/29. Postma %26 tenVeen 1999 Gamma ray_Sediment Geol.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.484.2900 http://www.geo.uu.nl/~gpostma/pdf van MS/29. Postma %26 tenVeen 1999 Gamma ray_Sediment Geol.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.26A81969 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |