NATURAL ENRICHMENT OF NICKEL AND VANADIUM IN SEDIMENT NUCLEI NEAR A SITE OF EXTRACTION OF RAW IN THE GULF OF MEXICO
Por:
Bojorquez-Sanchez, Sara, Judith Marmolejo-Rodriguez, Ana, Carolina Ruiz-Fernandez, Ana, Sanchez-Gonzalez, Alberto, Sanchez-Cabeza, Joan-Albert, Bojorquez-Leyva, Humberto, Hascibe Perez-Bernal, Libia
Publicada:
1 ene 2018
Resumen:
The coastal area of Veracruz state is located next to the oil extraction
area of the Gulf of Mexico. Elements as Ni and V can be indicators of
activities of oil extraction. In order to evaluate the contribution of
Ni and V related to petroleum activities two sediment cores (LL1, LL2),
from the El Llano lagoon in Veracruz. Moreover, major (Al, Ca, Fe) and
trace elements (Co, Li, Mn, Sr, and Zn) content was also analyzed with
inductively coupled plasma mass spectroscopy (ICP-MS). Complementary,
grain size (with laser diffraction) and organic carbon (with elemental
analyzer) were analyzed. The grain size results showed predominantly
sandy sediments in both cores and relatively low (< 3 %) organic carbon
results. Average concentrations of Ni and V were higher than the
continental crust average. Normalized enrichment factors reached
moderately enriched levels for Ni (NEF = 4) and significantly enrichment
for V (NEF = 6) in both cores. The Ni/V ratio indicated enrichment of V
and different origin of both elements. Nickel was associated with Al,
Fe, Co, Li, and Zn. On the contrary, V was not associated with those
elements; it had cyclic increments since the deep sections to the
surface probably associated to sporadic releases of natural bituminous
oil seeps.
Filiaciones:
Bojorquez-Sanchez, Sara:
Inst Politecn Nacl, Ctr Interdisciplinario Ciencias Marinas, Av Inst Politecn Nacl S-N, La Paz 23096, Baja Calif Sur, Mexico
Univ Politecn Sinaloa UPSIN, Km 3 Carretera Municipal Libre Mazatlan Higueras, Mazatlan 82199, Sinaloa, Mexico
Judith Marmolejo-Rodriguez, Ana:
Inst Politecn Nacl, Ctr Interdisciplinario Ciencias Marinas, Av Inst Politecn Nacl S-N, La Paz 23096, Baja Calif Sur, Mexico
Carolina Ruiz-Fernandez, Ana:
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Mazatlan, Calz J Montes Camarena S-N, Playa Sur 82040, Mazatlan, Mexico
Sanchez-Gonzalez, Alberto:
Inst Politecn Nacl, Ctr Interdisciplinario Ciencias Marinas, Av Inst Politecn Nacl S-N, La Paz 23096, Baja Calif Sur, Mexico
Sanchez-Cabeza, Joan-Albert:
Univ Nacl Autonoma Mexico, Dept Proc Ocean & Costeros, Inst Ciencias Mar & Limnol, Circuito Exterior S-N,Ciudad Univ, Ciudad De Mexico 04510, Mexico
Bojorquez-Leyva, Humberto:
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Mazatlan, Calz J Montes Camarena S-N, Playa Sur 82040, Mazatlan, Mexico
Hascibe Perez-Bernal, Libia:
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Mazatlan, Calz J Montes Camarena S-N, Playa Sur 82040, Mazatlan, Mexico
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