“Cone sheet”的意思、由来-开放百科全书

A cone sheet is a type of high-level igneous intrusion found in partly eroded central volcanic complexes. Cone sheets are relatively thin inclined sheets, generally just a few metres thick, with the geometry of a downward-pointing cone. Viewed from above, their outcrop is typically circular to elliptical. They were originally described from the Ardnamurchan, Mull and other central complexes of the British Tertiary Volcanic Province (now recognised as part of the North Atlantic Igneous Province).

Occurrence

Formation

Soon after cone sheets were first described, their formation was explained in terms of intrusion along conical fractures extending from the top of an intrusive body into the overlying rocks, caused by high magmatic pressure.^[11]

References

1. ^{{cite journal | title=The petrogenesis of Tertiary cone-sheets in Ardnamurchan, NW Scotland: petrological and geochemical constraints on crustal contamination and partial melting | first=Jörg | last=Geldmacher | first2=Karsten M. | last2=Haase | first3=Colin W. | last3= Devey | first4=C. Dieter | last4=Garbe-Schönberg | journal=Contributions to Mineralogy and Petrology | year=1998 | volume=131 | issue=2–3 | pages=196–209 | doi=10.1007/s004100050388}}
2. ^{{cite journal | url=https://academic.oup.com/petrology/article/51/10/2149/1576927/Fluid-Rock-Interaction-in-the-Miocene-Post-Caldera | title=Fluid–Rock Interaction in the Miocene, Post-Caldera, Tejeda Intrusive Complex, Gran Canaria (Canary Islands): Insights from Mineralogy, and O- and H-Isotope Geochemistry | first=Eleanor | last=Donoghue| first2=Valentin R. | last2=Troll | first3=Chris | last3=Harris | journal=Journal of Petrology | year=2010 | volume=51 | issue=10 | pages=2149–2176 | doi=10.1093/petrology/egq052}}
3. ^{{cite book | title=Geology of North Africa | publisher=CRC Press | author=Tawadros, E. Edward | year=2011 | location=Boca Raton | page=79 | isbn=9780415874205}}
4. ^{{cite journal | url=https://www.sciencedirect.com/science/article/pii/S0377027304003518 | title=Structural development of dike swarms controlled by the change of magma supply rate: the cone sheets and parallel dike swarms of the Miocene Otoge igneous complex, Central Japan | last=Geshi | first=N. | journal=Journal of Volcanology and Geothermal Research | year=2005 | volume=141 | issue=3–4 | pages=267–281 | doi=10.1016/j.jvolgeores.2004.11.002}}
5. ^{{cite journal | url=http://gsabulletin.gsapubs.org/content/111/4/607 | title=Structure and emplacement history of a multiple-center, cone-sheet–bearing ring complex: The Zarza Intrusive Complex, Baja California, Mexico | last=Johnson | first=S. E. | last2=Paterson | first2=S. R. | last3=Tate | first3=M. C. | journal=Geological Society of America Bulletin | year=1999 | volume=111 | issue=4 | pages=607–619 | doi=10.1130/0016-7606(1999)111<0607:SAEHOA>2.3.CO;2}}
6. ^{{cite journal | title=Subterranean origin of accreted lapilli in cone-sheets of the houshihushan sub-volcanic ring complex, Shanhaiguan, China | last=Wen | first=X. | last2=Ma | first2=C. | last3=Mason | first3=R. | last4=Sang | first4=L. | last5=Zhao | first5=J. | journal=Journal of Earth Science | year=2015 | volume=26 |issue = 5| pages=661–668 | doi=10.1007/s12583-015-0581-4}}
7. ^{{cite journal | url=http://www.sciencedirect.com/science/article/pii/S0377027314000304 | title=A new felsic cone-sheet swarm in the Central Atlantic Islands: The cone-sheet swarm of Boa Vista (Cape Verde) | first=Eumenio | last=Ancochea | first2=María José | last2=Huertas | first3=Francisco | last3=Hernán | first4=José Luis | last4=Brändle | journal=Journal of Volcanology and Geothermal Research | year=2014 | volume=274 | pages=1–15 | doi=10.1016/j.jvolgeores.2014.01.010}}
8. ^{{cite journal | url=http://jgs.lyellcollection.org/content/128/2/173.short | title=The history of the alkaline volcanoes and intrusive complexes of eastern Uganda and western Kenya | first=B. C. | last=King | first2=M. J. | last2=Le Bas | first3=D. S. | last3=Sutherland | journal=Journal of the Geological Society | year=1972 | volume=128 | issue=2 | pages=173–205 | doi=10.1144/gsjgs.128.2.0173}}
9. ^{{cite book | url=https://d28rz98at9flks.cloudfront.net/10535/Rec1959_104.pdf | title=Progress Report on Upper Palaeozoic Intrusions Controlled by Ring Fractures near Kidston, North Queensland | publisher=Bureau of Mineral Resources Geology and Geophysics, Department of National Development, Commonwealth of Australia | author=Branch, C.D. | year=1959}}
10. ^{{cite journal | url=https://www.sciencedirect.com/science/article/pii/S0377027304001970 | title=Geometry and mode of emplacement of the Thverartindur cone sheet swarm, SE Iceland | author=Klausen, M.B. | journal=Journal of Volcanology and Geothermal Research | year=2004 | volume=138 | issue=3–4 | pages=185–204 | doi=10.1016/j.jvolgeores.2004.05.022}}
11. ^{{cite journal | url=http://pure-oai.bham.ac.uk/ws/files/10156780/Magee.pdf | title=An alternative emplacement model for the classic Ardnamurchan cone sheet swarm, NW Scotland, involving lateral magma supply via regional dykes |author1=Magee C. |author2=Stevenson C. |author3=O'Driscoll B. |author4=Schofield N. |author5=McDermott K. | journal=Journal of Structural Geology | year=2012 | volume=44 | pages=73–91 | doi=10.1016/j.jsg.2012.08.004}}