ATTACHMENT I
Archaeological Guidelines For S-23, S-25 and S-26
Shipwreck Sites Off The East Coast Of Florida
Salvaged Under Contract To The State
By The Mel Fisher Center, Inc., Or By Its Subcontractors
The following guidelines have been
prepared in accordance with the Settlement Agreement of June 3, 1983
between the Florida Department of State and Treasure Salvors, Inc., Cobb
Coin Company, Inc., Salvors, Inc. and its successor, the Mel Fisher
Center, Inc. They specify salvage methods and techniques which will
guide collection of archaeological information of wreck sites covered in
the above agreement. The purpose of these guidelines is to establish
minimum recording standards in order that sound archaeological
provenience information can be made available to the salvors, the State,
and eventually the public. Generally, the Guidelines are concerned with
recording location of excavation activities; provenience of recovered or
recorded artifacts; mapping of wreck sites at broad and detailed scales,
as appropriate; artifact tagging, handling, security and conservation;
and diver safety.
- DGPS Position Finding
No wreckage will be salvaged until each vessel involved with
excavation or artifact recovery is equipped with a differential GPS
(DGPS) capable of, and calibrated to, receive a three meter or
better (less than three meter) geographic positioning accuracy. The
DGPS should be set to the 1983 North American Datum (NAD83). The
Division recommends the use of the US Coast Guards differential
beacon located at Cape Canaveral for the acquisition of real-time
differential position corrections. DGPS readings should be taken in
degrees, minutes and decimal minutes to the third decimal place.
- Data Records
Each boat must have on board at least one person approved by the
Division to perform the following tasks:
- How to use and take accurate readings from a DGPS
positioning unit.
- Understand and use an approved artifact tagging
system, which will allow identification and provenience of all
recovered artifacts to be maintained.
- Understand and use an approved data recording system,
which will provide an accurate record of boat location, salvage
activities, artifacts recovered by tag number and location, and
other useful information.
- The Division and the Salvor will conduct a workshop
at the beginning of the field season to instruct crew members in
these areas and will be further available throughout the field
season to instruct new data recorders, provide refresher
training when necessary and assist in data recording.
- Recording Blower Hole Locations and Contents and Other Large
Bottom Features
Locations of blower holes and other large bottom features will be
determined by DGPS position finding equipment. To ensure accuracy of
recording blower hole locations, the DGPS satellite receiving
antenna will be mounted in a standard location on each boat as near
to, or preferably over top of the blower. DGPS readings are to be
collected while the blower is in operation. Each salvage boat will
have and use DGPS. On the field note form, brief descriptions and
tag numbers of all artifacts will be recorded for each blower hole
so that the tag number is sufficient to determine the provenience of
any artifact. Representative and all unusual blower hole profiles
will be recorded noting the general order and thickness of
recognizable sediments and the location of artifacts, fossils or
other useful information. Profiles, which indicate that an earlier
blower hole is being reopened, should be noted. When possible a more
accurate location description for important artifacts should be
recorded, for example, in which quarter of the blower hole and from
what sediment. Finally any interpretations of stratification or
association which might be useful in understanding the process of
artifact scatter and deposition should be noted.
- Large Non-Structural Artifacts
Large objects like cannon and anchors will be tagged, left in place
on the bottom and their geographic location in Latitude North and
Longitude West recorded so that they may serve as a mapping and
location references in future work. If such large objects interfere
with underwater metal detector survey they may be moved to another
location on the site with the approval of the Division or the Salvor
providing the original and new locations are recorded and mapped.
Cannon, anchors, wood structure and other large objects will not be
removed from the site unless transfer, storage, and conservation
facilities approved by the Division and the Salvor are available.
- Structural Remains and Major Artifact Clusters
Because structural remains and major artifacts clusters have more
important association than scattered material, greater care is
required in recording provenience. Structural remains will be
photographed when possible, and mapped at 1:50 scale on base maps
supplied or approved by the Division to show position of wooden
structural members, spikes, and other artifacts as well as details
of construction if visible. Detailed maps must specify the
coordinate system (latitude/longitude, UTM or State Planes) and
North American Datum (NAD 27 or NAD 83) used for compilation. DGPS
coordinates (as specified in section 1 above) should be taken as
nearly as possible on top of taut buoy lines, which mark mapping
reference points (datums) on the bottom. Structural remains will not
be moved or undermined unless mapping results have been approved by
the Division and the Salvor and unless transfer, storage, and
conservation facilities approved by the Division and the Salvor are
available.
- Artifact Tagging
All recovered artifacts will be tagged individually or as a group
when from a single provenience except as outlined below. Anchors and
cannon recorded and left on the bottom will also be tagged. Tags
will be plastic with permanent imprinted numbers and affixed to
artifacts or bags of grouped artifacts by stainless steel wire or
high test, monofilament, fishing line.
For small or delicate artifacts the tag may be placed in the same
sealed protective container as the artifact. Large objects will be
individually tagged. Small objects will be individually tagged if
they are unique or have special value. Common objects such as
pottery sherds, spikes, barrel hoop fragments, musket balls or lead
sheathing can be bagged as a group and assigned a single tag number
when from the same provenience. Bags will be sufficient strength
that they will not tear or break in handling or rot in storage
before processing; cloth is recommended.
- Artifact Handling
Artifacts may be divided into four categories; large objects, such
as anchors, cannon, and hull structure; miscellaneous encrusted
objects (E.O.'s); miscellaneous small identified non-precious
artifacts; and identified unique or precious artifacts. After
tagging and recording, artifacts in each category will be treated as
follows:
- Large Objects: These will be left in place on site until
removal is approved by the Division and the Salvor and wet
storage facilities are available. Once removed, they should be
handled so as to minimize damage and should be kept moist. They
must not be allowed to remain out of water more than three days.
- Miscellaneous Encrusted Objects: These fall into two
categories
- general identifiable non-fragile E.O.s; and,
- interesting or fragile E.O.s.
The former category will generally include barrel hoops, spikes
or general ship's hardware. The latter category includes swords,
knives, small tools and implements. All E.O.'s should be kept
moist and E.O.'s in the latter category must be kept moist,
while onboard and in transit to the storage and processing
laboratory. Ballast stones and coquina rock may be separated
from E.O.'s if their removal will facilitate handling and not
break the E.O. E.O.'s will not be broken open on board; instead
they will be processed on shore at the storage and laboratory
facility.
- Common Miscellaneous Small Identified Non-Precious Artifacts:
These include such items as pottery sherds, spikes, barrel hoop
fragments, musket balls, and lead sheathing. These may be bagged
as a group from each blow hole or excavation unit. If iron is
included, the bags or objects will be kept moist.
- Identified Unique or Precious Artifacts: These will be
assigned individual tags, unless they are cluster of coins, and
placed in individual small plastic bags or protective jars to
prevent damage. Unique and precious objects will be photographed
at the processing facility and precious objects will be
deposited with the bank or other approved facility on the day or
evening of their recovery.
- Artifacts Processing and Stabilization
All artifacts recovered from site are to be conveyed to the artifact
processing and stabilization facility. This facility shall have
storage and processing capability approved by the Division and the
Salvor and will provide sufficient security to ensure the protection
of the artifacts, which it receives. In addition to the routine
processing of E.O.'s and other artifacts needing stabilization
and/or conservation, all precious artifacts - gold, silver and
jewels - and unique artifacts will be photographed and the tag
number and provenience data recorded on the photo back prior to
being conveyed to the bank or other approved facility for
safekeeping. At least two copies of these photographs will be
prepared: one for the Division and one for Salvor. Final records and
inventories of identified artifacts from each site and excavation
unit will be prepared for each vessel's activities, and artifact
overlay maps compiled at this facility so that results may be
available to guide further salvage activities. Copies of all field
records will be maintained at this facility during the salvage
season and log sheet copies along with artifact photographs
submitted to the Salvor and the Division every two weeks.
- Artifact Conservation
All fragile and unique artifacts of special interest will be sent to
the Salvor's, Conservation Laboratory in Sebastian, Florida for
cleaning, stabilization and conservation/restoration. Interesting
encrusted objects should also be sent to Sebastian to be X-rayed as
soon as possible after recovery. The Salvor Conservation Laboratory
staff and the Division Conservation Laboratory staff will cooperate
closely in these activities.
- Diver Safety
Spinning shafts, high vacuum suction intakes and propellers will be
caged while divers are in the water. Dive flags will be displayed
and standard dive safety precautions will be followed. NOTE: It is
neither within the capability nor responsibility of the Florida
Bureau of Archaeological Research to concern itself with this aspect
of the Salvor's operation.
- Project Supervision
In order to ensure that the quality of information recorded is
adequate and that the information is consolidated and interpreted in
a professional manner, the Salvor will provide a professional
archaeologist and sufficient trained assistants to supervise the
number of vessels used in exploration and salvage activities.
- Reporting Requirements
The Salvor will prepare a report on each site salvaged before the
beginning of the next dive season. The Division may assist in these
activities. Copies of each report, journal article or manuscript
resulting from data derived from salvage and/or exploration
activities will be provided to the Division by the Salvor.
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