water depth. During the acquisition CTD profiles
have been collected every 6 hours. The line spacing (Fig. 1) has been set to obtain a variable overlap (from 30%, up to 100%) between swaths.
During the acquisition about 1500 km of
Subbottom Chirp profiles have been recorded.
During the second cruise, (GMS98-1, May 1998),
110 cores (for a total of more than 450 m), 18
dredges and 41 box-cores have been collected
over the area coupled to a grid of more than 500
krn of single-channel Sparker 1 kJ and 4 kJ and
magnetometric profiles. The third surveyl was
chiefly aimed at the detailed sea-floor exploration
of some sectors of the area through the deep tow
Gull of Naples
GeomoI»IIOIOOI map.,._ on
M.-m and Subbotlom Chirp ""fV8)'
0 ' ~'3
m, ~'4
. 3 ESaA
~.
@e
121 - e;;;]c
aD
I,..... Ie
~F
G
~ 'o ~H
0" ~I
~12 OL
Morphobathymetry in the Bay of Naples
3
TOBI sonar (Southampton Oceanography
Centre, UK) which can provide detailed acoustic
imagery of the sea-floor (Chiocci et al. 1998). The
analysis of the sampled sediments and of the
acoustical/geophysical data acquired during
these last two cruises is still in progress.
Results
The continental shelf in the bay has a variable
width ranging from 2.5 km (off the western side
of Capri island) to about 10-15 km (off the
Sorrento coast); offshore the Vesuvian area the
Fig. 3. Geomorphological map of the Bay of Naples. Deposits: Late Pleistocene-Holocene: 1 post-glacial drape; 2 reworked sediments (mud flows, lahars); 3 sediments deformed by creep; 4 sand lobes; 5 coastal dunes (buried by post-glacial drape); 6 enigmatic mounds ("Bacarozzi" Facies); 7 algal patch reefs (post-glacial); 8 coastal regressive sands (buried by post-glacial drape);
9 submerged or buried parasitic vents or maars (Somma Vesuvius); 10 volcanic edifices (tuff cones, domes) and their remnants.
Middle-Late Pleistocene: 11 coastal regressive sand (last glacial); 12 volcanic edifices (tuff cones, domes) and their remnants; 13
remnants of the Middle-Late Pleistocene shelf; Cretaceous: 14 outcrops of carbonatic acoustic basement. Landform: A shelf
break; B terrace rim; C canyon wall; D slide and scar along canyon walls; E slump scar; F gravity slump; G drainage pattern; H
"Banco di Fuori" slope; I "Ammontatura" channel rim; L debris flow outrunner blocks
1 TIVoLI cruise (Tobi use in Italian Volcanic Islands, settember-october 1998) Chief Scientist: Prof. F.L. Chiocci; Centre of Study
for the Quaternary and the Environmental Evolution, CNR, Rome - Geomare Sud, CNR, Naples - Istituto Ciencias del Mar,
Barcellona, Spain - Southampton Oceanography Centre, UK.
have been collected every 6 hours. The line spacing (Fig. 1) has been set to obtain a variable overlap (from 30%, up to 100%) between swaths.
During the acquisition about 1500 km of
Subbottom Chirp profiles have been recorded.
During the second cruise, (GMS98-1, May 1998),
110 cores (for a total of more than 450 m), 18
dredges and 41 box-cores have been collected
over the area coupled to a grid of more than 500
krn of single-channel Sparker 1 kJ and 4 kJ and
magnetometric profiles. The third surveyl was
chiefly aimed at the detailed sea-floor exploration
of some sectors of the area through the deep tow
Gull of Naples
GeomoI»IIOIOOI map.,._ on
M.-m and Subbotlom Chirp ""fV8)'
0 ' ~'3
m, ~'4
. 3 ESaA
~.
@e
121 - e;;;]c
aD
I,..... Ie
~F
G
~ 'o ~H
0" ~I
~12 OL
Morphobathymetry in the Bay of Naples
3
TOBI sonar (Southampton Oceanography
Centre, UK) which can provide detailed acoustic
imagery of the sea-floor (Chiocci et al. 1998). The
analysis of the sampled sediments and of the
acoustical/geophysical data acquired during
these last two cruises is still in progress.
Results
The continental shelf in the bay has a variable
width ranging from 2.5 km (off the western side
of Capri island) to about 10-15 km (off the
Sorrento coast); offshore the Vesuvian area the
Fig. 3. Geomorphological map of the Bay of Naples. Deposits: Late Pleistocene-Holocene: 1 post-glacial drape; 2 reworked sediments (mud flows, lahars); 3 sediments deformed by creep; 4 sand lobes; 5 coastal dunes (buried by post-glacial drape); 6 enigmatic mounds ("Bacarozzi" Facies); 7 algal patch reefs (post-glacial); 8 coastal regressive sands (buried by post-glacial drape);
9 submerged or buried parasitic vents or maars (Somma Vesuvius); 10 volcanic edifices (tuff cones, domes) and their remnants.
Middle-Late Pleistocene: 11 coastal regressive sand (last glacial); 12 volcanic edifices (tuff cones, domes) and their remnants; 13
remnants of the Middle-Late Pleistocene shelf; Cretaceous: 14 outcrops of carbonatic acoustic basement. Landform: A shelf
break; B terrace rim; C canyon wall; D slide and scar along canyon walls; E slump scar; F gravity slump; G drainage pattern; H
"Banco di Fuori" slope; I "Ammontatura" channel rim; L debris flow outrunner blocks
1 TIVoLI cruise (Tobi use in Italian Volcanic Islands, settember-october 1998) Chief Scientist: Prof. F.L. Chiocci; Centre of Study
for the Quaternary and the Environmental Evolution, CNR, Rome - Geomare Sud, CNR, Naples - Istituto Ciencias del Mar,
Barcellona, Spain - Southampton Oceanography Centre, UK.