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Redalyc.Glomospirella Cantabrica N. Sp., and Other Benthic Foraminifera from Lower Cretaceous Urgonian-Type Carbonates of Cantab

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Redalyc.Glomospirella Cantabrica N. Sp., and Other Benthic Foraminifera from Lower Cretaceous Urgonian-Type Carbonates of Cantab Geologica Acta: an international earth science journal ISSN: 1695-6133 [email protected] Universitat de Barcelona España SCHLAGINTWEIT, F.; ROSALES, I.; NAJARRO, M. Glomospirella cantabrica n. sp., and other benthic foraminifera from Lower Cretaceous Urgonian-type carbonates of Cantabria, Spain: Biostratigraphic implications Geologica Acta: an international earth science journal, vol. 14, núm. 2, 2016, pp. 113-138 Universitat de Barcelona Barcelona, España Available in: http://www.redalyc.org/articulo.oa?id=50549465003 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Geologica Acta, Vol.14, Nº 2, June 2016, 113-138, I-III DOI: 10.1344/GeologicaActa2016.14.2.3 Glomospirella cantabrica n. sp., and other benthic foraminifera from Lower Cretaceous Urgonian-type carbonates of Cantabria, Spain: Biostratigraphic implications F. SCHLAGINTWEIT1 I. ROSALES2 M. NAJARRO2 1Lerchenauerstr., 167, 80935 Munich, Germany. E-mail: [email protected] 2Instituto Geológico y Minero de España (IGME) La Calera 1, 28760 Tres Cantos, Madrid, Spain ABSTRACT ' & & . ' 2 ( ' 5 ( %&, 4 . ? ? &: ' @ N % & &( ' && ' .&: &: ? > > > , & > . & KEYWORDS Cantabrian Chain. Aptian. Reocín Formation. Systematics. Orbitolinidae. Dasycladales. Stratigraphy. INTRODUCTION : ' N' . & & \ ' 2 ( ' 5 ( & !"#$ %& : ' ( ' ) #*+"% , N' ' & . \ - . & / / #*0#1 2 4 54 #*6#% : 2 #*$!1/ . #*0#1 5 #*071 8 > , 5 #*6+%& . & 113 F. Schlagintweit et al. Lower Cretaceous foraminifera from Cantabria 12 6 Cuchía 5 N San Vicente de la Barquera 11 Comillas Santillana 3 del mar 8 7 4 Torrelavega 1 9 2 10 El Soplao Ridge NCB Cabuérniga Iberian Peninsula 0 5 10 Km Carboniferous Jurassic Albian-Cenomanian Reverse fault Permian-Early Triassic Earliest Cretaceous Turonian-Neogene Late Triassic Fault Aptian Quaternary (Keuper facies) Sections with other studied Aptian algae, orbitolinids Studied sections with Glomospirella cantabrica and benthic foraminifera FIGURE 1. Geological map of the North-Cantabrian Basin with location of the studied samples. 1: Río Nansa section (PN samples), 2: El Soplao section (SOP samples), 3: Novales section (No and NO samples), 4: Cantera de Las Lastrías section (CL samples), 5: Cantera de Cuchía section (CCU samples), 6: Cuchía coast section (CU and PH samples), 7: Santa Eulalia section (SE samples), 8: Ruilobuca section (Ru samples), 9: Rábago section (LA samples), 10: Bustriguado section (Bu samples), 11: San Vicente de la Barquera section (SV samples), 12: Suances section (SU samples). GEOLOGICAL SETTING #*6*% @ 8 #*+!% 5 #*+$% E #*+$% D !""" !""$% : ' N' ? % (& #% ' & 2 > & > . .. : ? . . ' . A B 5 !"##1 !"#$12 #*6#18 8 #**"%&/ B !"#$%& ? : ' N' "#6 "0" B'D !"#$%&: E #*+$1 . !"##1 !"#$%&( ? . ( &!' F%H%2 ( "NF0 E . N' ( &!1F%& ? ' % - : ' N' 1 % ( "N!$ ? 8 #*!"% \ ' % ? ' & - 2 #*$*% 2 4 54 #*6!% 1%5 ( "N+" Geologica Acta, 14(2), 113-138, I-III (2016) 114 F. Schlagintweit et al. Lower Cretaceous foraminifera from Cantabria ? ' 4 : . . !"##% ? (&F%&:\ > + (&F% #"" . 1 .% B ( "N$$ ?. (&F% 4 ?1 ' % ? & , 1 ] .% 24 ( "N#"$ ? ' % & : . . . M & 1 .% 2 ( *NF"" ? : > 44 ' % !"#!%&: > F ? ? (& F% & ##7 ? . (&F% 4 . . 1 .% 5 ( "N!"" ? N' % & : . . 1.% . & ( #FN0$ ? N ' % ' . 2 ( - & : ' . 1 -% ( && 5 ( % \ ? . 8 & #!+ ? . !"#$%(&F%& ' 2 !"#$% . MATERIAL AND METHODS & , !$" #! : 2 ( . @ 8 #*+!% > . . & : P Q ? . #*6*% P Q 2 #*$*% 4 ( # : ,& : !F . #$ 8 2 ( @ 8 2 454 #*6715 2 B 24 @ #*60%& 2 5 & > 2 ( . : 8 !""6% 4> 4(4 !"#7% (4 @ , @ 8 8 !"#$% !"#$%&' B 8 8@8#"+76# . #"+++#& B . ? 2 ( % ( F& ? &( : \ . %H % & & #! % 5E ( #& / . % % O5 2 ( B % O . % ' 2 % 5 2 % 2 2 % ) ) > !""61 4> 4(4 % B! B % !"#7%& : 2 ( . %& > - , ' . P' 2 !""614> 4(4 !"#71 !"#$%& !"#7%&D Geologica Acta, 14(2), 113-138, I-III (2016) 115 F. Schlagintweit et al. Lower Cretaceous foraminifera from Cantabria A Río Nansa-Rábago El Soplao Novales-Ruilobuca-Las Lastrías Cuchía-Suances B Cantera de Las Lastrías section 100.5 Ma SW BIELBA Fm. (Somocuevas Mb.) NE N S Unconformity LAS PEÑOSAS Fm. Upper BARCENACIONES Fm. Albian Mid. REOCÍN Fm. Low. LAS PEÑOSAS Fm. Hiatus 113 Ma CL-8 REOCÍN Fm. REOCÍN Fm. CL-7 Rodezas Fm. Aptian San Esteban Fm. San Esteban Fm. Lower Cretaceous Lower Patrocinio Fm. Patrocinio Fm. Patrocinio Fm. Patrocinio Fm. CL-3 Umbrera Fm. Umbrera Fm. Umbrera Fm. Bedou. Garga. Clansa. 126.3 Ma Rábago Fm. Rábago Fm. Rábago Fm. Barre. Wealden (Pas Group) CL-2 Haut. Vala. Hiatus Hiatus Berri. 145 Ma Jurassic 7 m Triassic C Unconformity REOCÍN Fm. BARCENACIONES Fm. CCU-17A CCU-8 5m CCU-7 CCU-6 N Cantera de Cuchía section S FIGURE 2. A) Lithostratigraphy of the Lower Cretaceous in the North-Cantabrian Basin (modified from Najarro et al. 2011). B) Field picture of the upper part of the Reocín Formation and Las Peñosas Formation in the Cantera de Las Lastrías section, with location of some studied samples. C) Field picture of the Reocín and Barcenaciones formations in the Cantera de Cuchía section, with location of some of the studied samples. . . (& F%H 2 ( & #0% ' 8 5 ( &F"% 2 ( !"##%&, ' &6" \ !" 4% 5 \ ' % ( &0"% ( & ( ' / ('/% $$% ( & : 4% ' ' 2 5 % ('/ B 4%& 24 ( &!'1F%& %B &: - &7&+? DESCRIPTION OF THE STRATIGRAPHIC SECTIONS 2 . & : - B . : . B . & & - 2 . &: &!!" ? (&F : , 2 ( & +% (&#%H D % ( & %2 &, - &"&6? 0% 5 ( &!6% 2 . '#+# & ##$ ?& : \ #$ 8 5 2.& , . ? > Q . 2 4 54 #*6!% %2 !"#F% !"##% 2 !"#F%& , 2 ( : ' % . B %& : ( (&F%&: Geologica Acta, 14(2), 113-138, I-III (2016) 116 F. Schlagintweit F. Geologica Acta, 14(2),113-138,I-III (2016) 1: Río Nansa section 5: Cantera Cuchía Bi 6: Cuchía coast . .. section . section . Bi B Bi . 200 . .. 100 .. Cch 160 B . Cch . B . 80 Re et al. 2: El Soplao section . 160 120 60 Pe 3, 8: Composite SE Re . 200 Ruilobuca-Novales section 40 . 4: Cantera Las Lastrías . 120 . Pe section . 80 . 20 . 160 . .. Pa . Pe .. 0 m . 160 Re . 80 Pe 40 . 400 . .. 120 .. ... .. 120 . ..
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