ridm@nrct.go.th   ระบบคลังข้อมูลงานวิจัยไทย   รายการโปรดที่คุณเลือกไว้

Effect of solidification on a propagating dike.

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Effect of solidification on a propagating dike.
นักวิจัย : Taisne, B. , Tait, S.
คำค้น : DRNTU::Science::Geology.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2554
อ้างอิง : Taisne, B., & Tait, S. (2011). Effect of solidification on a propagating dike. Journal of Geophysical Research, 116. , http://hdl.handle.net/10220/8379 , http:dx.doi.org/10.1029/2009JB007058
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of geophysical research
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Magma migration through the brittle crust from depth occurs by the propagation of hydraulic fractures or dikes. Volcanic eruptions occur at the last stage if and when a propagating dike reaches the surface. Dike propagation involves complex physics because of several processes that are simultaneously occurring such as viscous flow of magma, rock fracture, elastic deformation of the host rock, and potentially large changes of the physical properties of the magma (crystallization, degassing, solidification, etc.). Currently the most practical way in the field or in terms of field measurements to follow the migration of magma before it reaches the surface is the analysis of the seismicity generated; nevertheless, a physical model that quantitatively relates the flux of magma in the dike to the seismicity is lacking. We present here laboratory experiments involving propagation of a fluid-filled crack such that the fluid solidifies upon contact with the cold elastic host. We show that this can lead to a way of estimating the flux of the injection as a function of the surface creation rate. The latter is shown to be a more reliable gauge of magma flux than the upward propagating velocity. In the geologic application of a propagating dike, the rate of creation of surface area may be related to the rate of release of seismic energy. Although this latter relation needs further work to be quantitatively reliable, our new model nevertheless indicates how a new general framework can be constructed.

บรรณานุกรม :
Taisne, B. , Tait, S. . (2554). Effect of solidification on a propagating dike..
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Taisne, B. , Tait, S. . 2554. "Effect of solidification on a propagating dike.".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Taisne, B. , Tait, S. . "Effect of solidification on a propagating dike.."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print.
Taisne, B. , Tait, S. . Effect of solidification on a propagating dike.. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.