TECNICAS GEOFISICAS DE ALTA RESOLUCION APLICADAS A LA GEOLOGIA MARINA
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TECNICAS GEOFISICAS DE ALTA RESOLUCION APLICADAS A LA GEOLOGIA MARINA. BATIMETRIA DE ALTA RESOLUCION: Ecosonda RESON SeaBat 8160 Multihaz 50 KHz Profundidad < 3000 mts (1800m rec.) Single Ping, 126 HR Beans Ecosonda SIMRAD EM12D Multihaz 13 KHz

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M b e s en el caribe colombiano tecnologia

TECNICAS GEOFISICAS DE ALTA RESOLUCION APLICADAS A LA GEOLOGIA MARINA

  • BATIMETRIA DE ALTA RESOLUCION:

  • Ecosonda RESON SeaBat 8160

    • Multihaz

    • 50 KHz

    • Profundidad < 3000 mts (1800m rec.)

    • Single Ping, 126 HR Beans

    • Ecosonda SIMRAD EM12D

    • Multihaz

    • 13 KHz

    • Profundidad hasta 11.000 mts

    • 162 beams

    • Sample rate 60 cm (Shallow) 240 cm (Deep)

  • BACKSCATTERING:

  • Ecosonda RESON SeaBat 8160

    • Backscattering en Dos Modos ( Beam to beam, All)

    • SNIPPETS: Individual Beam Backscatter

    • Textura y Composición Sedimentológica

B

VOLCANES DE LODO EN EL DOMO DE BAHIA

B

BATIMETRIA SATELITAL: Misiones GEOSAT & ERS-1

Resolucion 2 Km x 2 Km, adecuada para estudios de

configuracion de fondos oceanicos. (ECOPETROL, 1999)

270 Km

370 Km

A

CANAL DE LA AGUJA

35 Km

CURVA DE VELOCIDAD

De la propagacion de

ondas en el agua, ejemplo

de la zona Caribe, utili -

zando SIPPICAN.

  • MAPEO DEL FONDO OCEANICO:

  • Leadline - Single Beam - Multibeam (MBES).

  • Posicionaimento: GPS < 2 meters; RTK - 10 to 20 cm

    • Resolucion X-Y 5-25cm, dependiendo Prof. Agua

    • Resolucion Z: 20-50cm (Somera) 1.5% Z (Profunda)

    • Velocidad adquisicion ~ 9 kts

    • (Cortesia Thales Geosolutions.)

DETALLE DE MBES: “Basin floor fan delta”, al pie del

cañon de la Aguja, profundidad de la planicie abisal:

3800 metros (BNM). Se observan deslizamientos gravita -

cionales y corrientes profundas. (ECOPETROL, 2002)

A

M.B.E.S EN EL CARIBE COLOMBIANO : TECNOLOGIA

JOHN F. CERON

jceron@ecopetrol.com.co