Evidence of a high-productivity area off the coast of Malaga from studies of diatoms in surface sediments

被引:46
作者
Barcena, MA
Abrantes, F [1 ]
机构
[1] Univ Salamanca, Fac Sci, Dept Geol, E-37008 Salamanca, Spain
[2] Geol Serv Portugal, P-1200 Lisbon, Portugal
关键词
diatoms; surface sediments; palaeoceanography; western Mediterranean; Recent;
D O I
10.1016/S0377-8398(98)00012-7
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
The assemblages of diatoms contained in nineteen surface sediment samples recovered off the coast of Malaga province (Spain) between 5 degrees W and 4 degrees 38'W have been analysed. The variations observed in the diatom assemblage point to the presence of nutrient-enriched waters, transported laterally from the centre of an upwelling that occurs to the west of the study area. The utility of species such as Paralia sulcata, Thalassionema nitzschioides and the spores of Chaetoceros spp. in the reconstruction of physico-chemical and biological characteristics and of the spatial structure of the upwelling is confirmed. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:91 / 103
页数:13
相关论文
共 40 条
[1]   DIATOM PRODUCTIVITY PEAK AND INCREASED CIRCULATION DURING LATEST QUATERNARY - ALBORAN BASIN (WESTERN MEDITERRANEAN) [J].
ABRANTES, F .
MARINE MICROPALEONTOLOGY, 1988, 13 (01) :79-96
[2]   DIATOM ASSEMBLAGES AS UPWELLING INDICATORS IN SURFACE SEDIMENTS OFF PORTUGAL [J].
ABRANTES, F .
MARINE GEOLOGY, 1988, 85 (01) :15-39
[3]   INCREASED UPWELLING OFF PORTUGAL DURING THE LAST GLACIATION - DIATOM EVIDENCE [J].
ABRANTES, F .
MARINE MICROPALEONTOLOGY, 1991, 17 (3-4) :285-310
[4]  
Abrantes F., 1990, COMUN SERV GEOL PORT, V76, P23
[5]   VARIABILITY OF UPWELLING OFF NW AFRICA DURING THE LATEST QUATERNARY: DIATOM EVIDENCE [J].
Abrantes, F. F. .
PALEOCEANOGRAPHY, 1991, 6 (04) :431-460
[6]  
ABRANTES FFG, 1985, OCEANOL ACTA, V8, P7
[7]  
BALLESTER A, 1983, ESTUDIO OCEANOGRAFIC, P219
[8]  
BARCENA MA, 1991, REV ESPANOLA PALEONT, V5, P53
[9]   EL CUERVO SECTION (ANDALUSIA, SPAIN) - MICROPALEONTOLOGIC ANATOMY OF AN EARLY LATE MIOCENE LOWER BATHYAL DEPOSIT [J].
BERGGREN, WA ;
BENSON, RH ;
HAQ, BU ;
RIEDEL, WR ;
SANFILIPPO, A ;
SCHRADER, HJ ;
TJALSMA, RC .
MARINE MICROPALEONTOLOGY, 1976, 1 (03) :195-247
[10]   RELATIONSHIP BETWEEN THE PHYTOPLANKTON DISTRIBUTION AND COMPOSITION AND THE HYDROGRAPHY IN THE NORTHWEST AFRICAN UPWELLING REGION NEAR CABO-CORBEIRO [J].
BLASCO, D ;
ESTRADA, M ;
JONES, B .
DEEP-SEA RESEARCH PART A-OCEANOGRAPHIC RESEARCH PAPERS, 1980, 27 (10) :799-821